This is copied directly from your stylesheet.css file :
Code:
#mainWrapper {
background-color: #ffffff;
text-align: left;
width: 750px;
vertical-align: top;
border: 1px solid #9a9a9a;
}
#headerWrapper, #contentMainWrapper, #logoWrapper, #cartBoxListWrapper, #ezPageBoxList, #cartBoxListWrapper ul, #ezPageBoxList ul, #mainWrapper, #popupAdditionalImage, #popupImage {
margin: 0em;
padding: 0em;
}
#logoWrapper{
background-image: url(../images/header_bg.jpg);
background-repeat: repeat-x;
background-color: #ffffff;
height:75px;
}
#navColumnOneWrapper, #navColumnTwoWrapper, #mainWrapper {
margin: auto;
}
#navColumnOneWrapper, #navColumnTwoWrapper {
margin-left: 0.5em;
margin-right: 0.5em;
}
So, it is definitely there!
You may have more than one file (this is what Tshooters was talking about )
The one that is actually being used is in http://ponypartsexpress.com/includes...stylesheet.css which means that you are not using the override system.
Sorry to be a nag but you really must work that out. Not only does it protect you during updates but it means that you have a bit of a back-up when you do edits.
Whether to clean install is up to you. What is there is not irredeemable but sometimes it makes sense to start fresh. See what you feel like after sleeping. I am around all day tomorrow if you need advice (UK time). Don't stress. It is like learning to drive. The first lesson seems impossible then you find yourself driving fine and can't even remember that first lesson.
I need to sleep too.
Nik