Membership Plugin

Hi guys, I became an affiliate!! yeeeeeahhh terrrriiifffic...

Regarding membership, I tried to install it 3 times and evidently I am not smart enough to get it working. I´m launching a promotion for Executevi membership so now I really need it installed. I need personalized voice support to install it step by step. I don´t mind paying, but please help me solve this ASAP!!

The membership levels are easy:

1. Stranger (FREE, access to view, but can´t do anything except comment)
2. Member (FREE, acces to the same, but is author and can do everything)
3. Executive Member (PAID, all of the above, plus premium themes, and access to some premium services, and some special network sites)

Thx! Donald.