The category navigation link is wrapped into second line

I am using zecart Version 1.3.8. I customised some page and look. I placed search keywords here box at above category navigation. after placing this the last category wrapped down to next line. I think the problem is the search box alignment. I unable to rectify this. please help me...
the wrapped links is "Gift Ideas"
my url is: https://www.yellowpagesmall.com

Thank you verymuch for your help.
Take Care
Sudha

Looking in FireFox that is not wht I see???

I would start y getting the search into the same div - - as it is now it is not - - from your view source

<!--bof-navigation display-->
<div id="navMainWrapper">
	<div id="navMain">
    	<ul class="back">

	    	<li><a href="http://yellowpagesmall.com/store/">Home</a></li>
						<li><a href="http://yellowpagesmall.com/store/index.php?main_page=login">Log In</a></li>
								</ul>
	</div>
 <div id="navMainSearch"></div> 
<br class="clearBoth" /> 
</div>
<!--eof-navigation display-->

Actually you have these all over the place!!!