Post a new thread (instead of replying to a really old one) with your relevant code and the errors you're getting. This description is too vague to answer.
pritaeas
Posting Expert
5,484 posts since Jul 2006
Reputation Points: 653
Solved Threads: 875
Well my dear sir. I am not a master coder, or a person that writes code for people out of the good of my heart, but have you ever tried this thing called research? There is this really cool site called Open Source CMS, it lists a crapload of Open Source CMSs. There is an ecommerce category, try there.
http://php.opensourcecms.com/scripts/show.php?catid=3&category=eCommerce
epicrevolt
Junior Poster in Training
94 posts since Oct 2010
Reputation Points: 16
Solved Threads: 6
If you are using PayPal, you can use their cart. It doesn't get much simpler than that.
chrishea
Nearly a Posting Virtuoso
1,428 posts since Sep 2008
Reputation Points: 210
Solved Threads: 230