WHMCS MU Provisioning new site template


I installed the new blog template to my wordpress site and now it seems to be ok. But now im installed the WHMCS MU Provisioning.
And when a new site is generated its only generate a simple wordpress blog not my new site template.

How can i fix it ?

Also i need to let the user choose minimum of 3 types of "new blog template site" - how can i do this ? Simply create 3 product ?

Thank you