CashQuest2 also fits the majority of your criteria save for the pay per 'free' sign ups.
1. We have tons of free content in our webmaster area. And if you need more, I'll be happy to get you what you need.
2. We offer 5% webmaster referrals on both our per sign up program, and our RevShare program.
3. We pay $28-$35 per TRIAL signup on a sliding scale, depending on how many sign ups you can send. Also, we are always willing to work out a deal if you can send enough sign ups.
3. We also process with Jettis.
We have 12 different niches for your to promote, and some of the most popular niche sites online. ;)
Feel free to contact me for any further info!
[email protected]