thought id help out.
PHP Code:
domain.com/galleries/0001/?ccbill=9999999
Call this in your file by writing
PHP Code:
<?php print $_GET['ccbill']; ?>
So you can pass it to your tour like this:
PHP Code:
<a href="http://refer.ccbill.com/cgi-bin/clicks.cgi?CA=000000-0000&PA=<?php print $_GET['ccbill']; ?>&HTML=blahblah">Click here to see more</a>