Welchyboy -
I don't have a wider monitor to look at your site, but Photoshop editing to match image edges for tiling is probably a subject to google for if you don't already know what is intended.

Ozetrade -
You are showing things like

.catBG_34 #cell_3_3 {

in your stylesheet. This means the element with id #cell_3_3 inside the element with class .catBG_34; but what you have is one element with both class .catBG_34 and id #cell_3_3. You would write that in CSS as

#cell_3_3.catBG_34 {

or

.catBG_34#cell_3_3 {