Membership Site + WPMU Intergration

I am using Optimize Press for my launch. Once a user purchases he should be given is given membership access.

I have used the "membership" plugin for this.

After he has signed up he is getting redirected to the wp-admin for his profile. I want him to be redirected directly to the members area where the content is delivered in the form of Video,Pdf's etc.

I am also allowing my members to create their own blog on my domain. For this I am using "Pro Sites"

Within his members area he should be able to setup his own blog, manage and maintain it.

Please let me know how I can set this up..Thanks