About the prosites

About the prosites setup:
problem 1
- I choose a plan then fill the form and when i choose the paypal option to pay it redirects for the home page. When I go back again to the payment it sends me to paypal.

problem2
- the site is created in administration but is not associate to prosites level that i choose in the form

We are using the new blog template and when it creates the new site it's creating correctly the site.

Form link: http://a3vteshop.com/adira-ja/