links don't work in firefox

hi, am having trouble as when i view the site in IE the links in the categories work fine, however in firefox they all blend into one!! can anyone help? my site is

http://secure.vault5.com/thenoblesavage-co-uk/shop/

and i have enclosed a copy of the stylesheet i am using.. if this helps..

cheers stu

stylesheet.....

BODY { color: #ffc; font: 11px Verdana, Arial, sans-serif; background-color: #ffc; margin: 0 0 10px; padding: 0; }

.centershop { color: maroon; background-color: #ffc; padding: 0; margin: 0 auto; position: relative; text-align: left; width: 750px !important; }

TD.main, P.main { font-size: 18px; font-family: "Zapf Chancery", "Comic Sans MS", cursive; font-weight: 500; line-height: 1.5; background-color: #ffc; }

A { color: maroon; font-size: 14px; font-family: "Zapf Chancery", "Comic Sans MS", cursive; line-height: 16px; text-decoration: none; }

A:hover { color: #ffb062; font-family: "Zapf Chancery", "Comic Sans MS", cursive; text-decoration: none; }

FORM { background-color: #ffc; display: inline; }
.banners { font-family: "Zapf Chancery", "Comic Sans MS", cursive; padding: 15px; }

/HEADER CSS/

TABLE.header { color: maroon; font-family: "Zapf Chancery", "Comic Sans MS", cursive; background-image: url(../images/anotherbanner1.gif); background-repeat: no-repeat; background-color: #ffc; background-position: center bottom; border-right: 1px solid #9a9a9a; border-left: 1px solid #9a9a9a; border-bottom: 1px solid #9a9a9a; }

TABLE.headerNavigation { background-image: url(../images/tile_back.jpg); border-right: 1px solid #9a9a9a; border-left: 1px solid #9a9a9a; border-bottom: 1px solid #9a9a9a; width: 100% !important; }

TD.headerNavigation { position: relative; vertical-align: middle; font-family: Verdana, Arial, sans-serif; font-weight: bold; color:fuchsia; letter-spacing:1px; padding: 5px; }

TD.breadCrumb { font-weight: bold; color: maroon; font-family: "Zapf Chancery", "Comic Sans MS", cursive; padding: 3px; border-bottom: 1px dotted #9a9a9a; }

TD.headerNavigation A, TD.headerNavigation A:visited, td.footertop a { font-weight: bold; color: yellow; font-family: "Zapf Chancery", "Comic Sans MS", cursive; }

TD.headerNavigation A:hover, td.footertop a:hover { color: #a8cfff; font-family: "Zapf Chancery", "Comic Sans MS", cursive; }

TR.headerError {
background: #ff0000;
}

TD.headerError {
font-family: Verdana, Arial, sans-serif;
background: #ff0000;
color: #ffffff;
font-weight : bold;
text-align : center;
}

TR.headerInfo { background-image: none; background-repeat: repeat; background-attachment: scroll; background-position: 0 0; }

TD.headerInfo { font-family: Verdana, Arial, sans-serif; color: yellow; font-weight: bold; background-image: none; background-repeat: repeat; background-attachment: scroll; background-position: 0 0; text-align: center; }

/SIDEBOX CSS/

.column_left, .column_right, .column_single { font-family: "Zapf Chancery", "Comic Sans MS", cursive; background-image: none; background-repeat: repeat; background-attachment: scroll; background-position: 0 0; padding: 2px; }

.boxText { color: yellow; font-size: 11px; line-height: 125%; }
.leftbox, .rightbox, .centerbox, .singlebox { font-size: 11px; background: #ffc; margin-bottom: 15px; border: solid 1px gray; outline-color: #ffc; }

.leftboxheading, .rightboxheading, .centerboxheading, .singleboxheading {
/background-color: #abbbd3;/
font-size: 15px; font-weight: bold; color: yellow; padding: 3px 3px 3px 5px; height: 20px; }

td.leftboxheading a, td.rightboxheading a, td.centerboxheading a, td.singleboxheading a { color: #ffffff; }

TR.leftboxheading, TR.rightboxheading, TR.centerboxheading, TR.singleboxheading { background-image: url(../images/tile_back.jpg); background-repeat: repeat; background-attachment: scroll; background-position: 0 0; }

.leftboxcontent, .rightboxcontent, .centerboxcontent, .singleboxcontent {
line-height: 125%;
padding: 4px;
border-top: 1px solid #9a9a9a;
border-bottom: 1px solid #9a9a9a;
}

.leftboxfooter, .rightboxfooter, .centerboxfooter, .singleboxfooter {
background-image: url(../images/tile_back.jpg);
margin-bottom: 15px;
}

.plainBox, .plainbox-description { font-family: Verdana, Arial, sans-serif; font-size: 11px; background: #ffc; padding: 0; border-style: none; }
.plainBoxHeading, TD.tableHeading {
font-size: 12px;
font-weight: bold;
padding: 11px 5px 5px;
}
.productListing-heading {
font-size: 10px;
font-weight: bold;
color: yellow;
padding: 3px;
height: 20px;
}

TD.productListing-heading{
background-image: url(../images/tile_back.jpg);
}

TD.productlisting {
border:1px solid #9a9a9a;
}

TD.productListing-data {
font-size: 10px;
padding: 5px;
}

/center main section
-----------------------------------/
TD.pageHeading, DIV.pageHeading, h1 { font-size: 18px; font-weight: 500; color: maroon; font-family: "Zapf Chancery", "Comic Sans MS", cursive; padding-top: 0; }

.center_column { padding: 8px; }
.main_page{ width: 100% !important; border-right: 1px solid #9a9a9a; border-left: 1px solid #9a9a9a; border-bottom: 1px solid #9a9a9a; padding: 5px; }

/* footer
--------------*/

TABLE.footer { text-align: center; font-size: 10px; background-image: none; background-repeat: repeat; background-attachment: scroll; background-position: 0 0; border-right: 1px solid #9a9a9a; border-left: 1px solid #9a9a9a; border-bottom: 1px solid #9a9a9a; }

TR.footertop {
background: #abbbd3;
background-image: url(../images/tile_back.jpg);
font-size: 11px;
}

TD.footertop, TD.footerbottom {
padding: 5px;
}

/miscellaneous areas
-------------------------------------/
TD.cartBox {
background: #ffc;
font-size: 10px;
padding: 3px;
border: dotted 1px #ffb062;
}

TR.productListing-odd, TR.upcomingProducts-odd {
background: #ffc;
}

TR.productListing-even, TR.upcomingProducts-even, .productsNotifications {
background: #ffc;
}

TD.productListing-data-description-odd {
background: #ffc;
font-size: 10px;
padding-left: 10px;
padding-right: 10px;
padding-bottom: 12px;
border-bottom: 1px solid #9a9a9a;
}

TD.productListing-data-description-even {
background: #ffc;
font-size: 10px;
padding-left: 10px;
padding-right: 10px;
padding-bottom: 12px;
border-bottom: 1px solid #9a9a9a;
}

td.pageresults a {
color: #428dff;
}

td.pageresults a:hover {
background: #FFFF33;
}

SPAN.newItemInCart {
color: #ff0000;
font-weight: bold;
}

TD.smallText, SPAN.smallText, P.smallText, td.pageresults{
font-size: 10px;
}

TD.fieldKey {
font-size: 12px;
font-weight: bold;
}

TD.fieldValue {
font-size: 12px;
}

CHECKBOX, INPUT, RADIO, SELECT {
font-size: 11px;
}

TEXTAREA {
width: 100%;
font-size: 11px;
}

.greetUser {
font-size: 12px;
padding-top: 0;
padding-bottom: 0;
}

SPAN.greetUser {
color: #f0a480;
font-weight: bold;
}

SPAN.markProductOutOfStock {
color: #c76170;
font: bold 12px Verdana, Arial, sans-serif;
}

span.normalprice {
text-decoration: line-through;
}

SPAN.productSpecialPrice, SPAN.productSalePrice, .stockWarning, span.coming {
color: #ff0000;
}

span.productSpecialPriceSale {
color: #ff0000;
text-decoration: line-through;
}

SPAN.productPriceDiscount, .inputRequirement {
font-size: 10px;
color: #FF0000;
}
.moduleRow { }
.moduleRowOver { background-color: #D7E9F7; cursor: pointer; }
.moduleRowSelected { background-color: #E9F4FC; }

/* message box */

.messageBox {}
.messageStackError, .messageStackWarning, errorBox {
background-color: #ff0000;
color: #ffffff;
font-size: 10px;
padding: 4px;
border: 1px solid #9a9a9a;
}
.messageStackSuccess { background-color: #b3ffa8; padding: 2px; border: 1px solid #9a9a9a; }
.messageStackCaution { font-family: Verdana, Arial, sans-serif; font-size: 10px; background-color: #ffff00; }

/* checkout totals */
TD.ot-subtotal-Text, TD.ot-cod-fee-Text, TD.ot-total-Text, TD.ot-group-pricing-Text, TD.ot-gv-Text, TD.ot-loworderfee-Text, TD.ot-shipping-Text, TD.ot-subtotal-Text, TD.ot-tax-Text, TD.ot-coupon-Text {
font-weight: bold;
}
TD.ot-total-Amount {
font-weight: bold;
border-top: 1px solid #9a9a9a;
}
TD.ot-subtotal-Amount, TD.ot-cod-fee-Amount, TD.ot-group-pricing-Amount, TD.ot-gv-Amount, TD.ot-loworderfee-Amount, TD.ot-shipping-Amount, TD.ot-subtotal-Amount, TD.ot-tax-Amount, TD.ot-coupon-Amount {}

/* product_info attribute comments */

.ProductInfoComments, TD.ProductInfoComments, SPAN.ProductInfoComments {
color: #ff0000;
font-size: 10px;
text-align : left;
font-weight: bold;
padding-top: 6px;
padding-bottom: 6px;
border-top: 1px solid #9a9a9a;
}

/* General alert span class */
TD.alert, SPAN.alert {
color: #FF0000;
font-weight: bold;
}

/* General alert span class */
TD.alertBlack, SPAN.alertBlack {
color: #000000;
font-weight: bold;
}

/* popup tables */
TABLE.popupattributeqty, TABLE.popupcouponhelp, TABLE.popupcvvhelp, TABLE.popupimage, TABLE.popupimageadditional, TABLE.popupsearchhelp, TABLE.popupshippingestimator, TABLE.popupinfoshoppingcart {
background-color: #ffffff;
margin: 6px;
padding: 6px;
font: 11px Verdana, Arial, sans-serif;
}

/* categories_description */
TABLE.categoriesdescription {
font-family: Verdana, Arial, sans-serif;
font-size: 11px;
background: #D0D0D0;
border:1px solid #9a9a9a;
}

TD.categoriesdescription {
font-size: 11px;
line-height: 1px;
}

/* categories box parent and child categories */
A.category-top {
color: maroon;
text-decoration: none;
padding: 10px;
}
A.category-links { color: gray; text-decoration: none; }
A.category-subs, A.category-products {
color: #FF0000;
text-decoration: none;
}
SPAN.category-subs-parent {
font-weight: bold;
}
SPAN.category-subs-selected {
font-weight: bold;
}

/* attribute images table /
TABLE.products-attributes-images {
/ width: 100%; /
/ border: 1px solid #9a9a9a; */
float: left;
padding: 2px;
}

Probably your setting for a:category-top.