Another PCI Compliance Question

I did research about PCI Compliance a year ago and kind of just snuffed it off and ignored it. Now its passed the deadline July 1st 2010… and i had a customer tell me he was demanded by his processing company to have PCI Compliance website. now i’m like fml

The shopping cart I have for the client is custom made from the ground up.

What do i need to do to make my shopping cart PCI compliance ? do i have to submit the code to an agency? or something. I read online how shopping cart say “We are PCI Compliance!” what makes them PCI Compliance?

only think i can thing of is not storing the card on the database.

You could start by reading the specs -

There are several sites that contain useful info as well such as