I needed to contact a CPA network today, but they didn't have any information on their site so that I could contact them by AIM Messenger, which was my preferred choice. I then searched Google to see if I could find any AIM contact details for that network. While searching I found a site that lists a large amount of affiliate program and CPA network AIM contacts. So if any of you have ever had this problem, then
here is a great long list. I'm not sure how updated this list is, but it's always worth a try.
Hope it helps some of you out like it did me.