Column Grid Layout - th and td's

I am tyring to style the column grid layout mod. I did what any normal perosn would do. I viewed the source and found

centerBoxContentsProducts

I put a nice border around it with

td.centerBoxContentsProducts

and was ready to be happy and it only worked for a few products.

After a closer inspection I noticed that the top products didn't have a td tag.

It was all done in th. I can't find where to change it.

I went to the developers thing and typed in my class but it took me to the php i was had already looked at and I just don't know where to edit this.

Thanks!

Code:

table width="100%" border="0" cellspacing="0" cellpadding="0" id="cat9_19Table" class="tabTable"> <tr > <th class="centerBoxContentsProducts centeredContent back" style="width:32.5%;" scope="col" id="listCell0-0"><h3 class="itemTitle"><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=11">Baby Boxer Diaper Covers</a></h3><div class="listingDescription"></div><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=11"><img src="images/categories/100_0767.jpg" alt="Baby Boxer Diaper Covers" title=" Baby Boxer Diaper Covers " width="100" height="78" class="listingProductImage" /></a><br />$15.00<br /><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=11">... more info</a><br /><br /></th> <th class="centerBoxContentsProducts centeredContent back" style="width:32.5%;" scope="col" id="listCell0-1"><h3 class="itemTitle"><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=12">Baby Girl Fancy Pants</a></h3><div class="listingDescription"></div><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=12"><img src="images/categories/100_0826.jpg" alt="Baby Girl Fancy Pants" title=" Baby Girl Fancy Pants " width="100" height="84" class="listingProductImage" /></a><br />$12.00<br /><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=12">... more info</a><br /><br /></th> <th class="centerBoxContentsProducts centeredContent back" style="width:32.5%;" scope="col" id="listCell0-2"><h3 class="itemTitle"><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=21">Cloth Diaper Burp Cloth</a></h3><div class="listingDescription"></div><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=21"><img src="images/categories/100_0769.jpg" alt="Cloth Diaper Burp Cloth" title=" Cloth Diaper Burp Cloth " width="89" height="120" class="listingProductImage" /></a><br />$15.00<br /><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=21">... more info</a><br /><br /></th> </tr> <tr > <td class="centerBoxContentsProducts centeredContent back" style="width:32.5%;"><h3 class="itemTitle"><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=110">Cotton Knit Bib</a></h3><div class="listingDescription"></div><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=110"><img src="images/100_0829.jpg" alt="Cotton Knit Bib" title=" Cotton Knit Bib " width="92" height="120" class="listingProductImage" /></a><br />$15.00<br /><br /><a href="http://www.allaboutyoumonograms.com/index.php?main_page=product_info&cPath=9_19&products_id=110">... more info</a><br /><br /></td>