Hi Scole,
Love your site and slogan by the way!
Most affiliates just use an Excel spreadsheet or even word.
There are some programs specifically for organizing affiliate data.
One is affiliate organizer. Here's a review from Rosalind with a special price. 67
http://netprofitstoday.com/_resource...organizer.html
I saw a free program too, don't remember the name. I would just be REALLY careful with no name, unreviewed, free software to be sure there's no way it can "phone home" and give the developer all your passwords.