Very Big Problem with w3 total cache

I have uninstalled recently the w3 total cache, because it did not help me at all and now i have another nasty problem because of it. I have installed also wp-commerce plugin and now some fancy effects of the problems had disappeared. Example: When i click the product image it doesn’t open in a fancy pop-up, it redirects me to the path of the image, and i see it on a full white screen. Have a look : http://www.adwords-vouchers-shop.com/100dollar/ click on the image to see what i mean, and see how it was opening before installing the damn w3 total cache plugin: http://getshopped.org/extend/premium-upgrades/premium-upgrades/gold-cart-plugin/. I have done the following:
http://www.scottmcnew.com/home/best-way-to-delete-w3-total-cache/ but with no success. Please help.

I have reinstalled the shop, and it seams that it is a jquery problem. I have updated to 1.5 but the same problem.

Problem solved, i have add a plugin called announcements and now everything is good.