from the ccbill site:
If you want to allow your Affiliates to signup for your Affiliate Program one time and direct traffic to your subaccount websites, follow the steps listed below:
Create a banner page for your Affiliates, and host it on your website. The banner page should have separate banners for all of your sites.
Place a redirect link next to each banner for your Affiliates. The link should include an HTML variable appended to the end of it. The value of this variable should be the URL for the site where you will redirect surfers.
The following shows an example of the redirect link:
http://refer.ccbill.com/cgi-bin/clic...ourwebsite.com.
To modify the link for your site, copy the code shown above. Replace "900000-0000" with your main account number and subaccount number. Replace "http://www.yourwebsite.com" with the domain name of the site's redirect link. On the banner page you set up in step 1, inform your Affiliates that they need to replace "xxxxxx" with their CCBill Affiliate ID.
Go to the Modify Subaccount area of the Account Admin in the Tools section and select View Subaccount List. In the View Subaccount List, select subaccount number "0000", which is the subaccount for your main account.
Go to the System Setup page of the Setup area in the Affiliate section and configure your Affiliate Program defaults. CCBill recommends that you remove all banner URLs and only have the Banner Farm URL filled out. The Banner Farm URL is the web location of the banner page you set up in step 1. This way, you will only display the banner page for your Affiliates who log in and request your banners and links. The Affiliates will not be shown any extraneous information.
Once your Affiliate Program defaults are configured, click into Advanced Features from the Setup area and enable Multiple Redirects and CCBill Account Grouping.