You can also just use a CB redirect script, which creates the links, like this.
yourdomain.com/redirect.cgi?CB_product_id
This then goes directly to the sales page, less the hoplink. The effect is the same as what Havok says, but a script like the one i have attached for you, will work for all products on CB without any edits (once you've put in your own CB Aff ID).
I've also added the PDC one as well.
http://www.mediafire.com/?dbo6vehiocx