[carpeperdiem]

1. use firefox/firebug to see what the code is trying to do
2. use webmaster mode to discover the template and/or variables that are being called
3. the logo could be called from css

re: affiliate program -- don't even THINK of using the built in affiliate module.
a) any affiliate worth having will not work with you directly;
b) there are countless affiliate networks with reasonably good tracking and dashboard. We use LinkShare, but many advertisers and affiliates seem to like share-a-sale.

The point is: use a network -- there are far too many moving parts in an affiliate program. X-Cart should just remove the module, since it's functionally useless. You are MUCH MUCH MUCH better off with a 3rd party.