there, i would like to know where in the membership plugin

hi there, i would like to know where in the membership plugin can i find the template for the membership registration form which replaces the buddypress membership form?

I ask because there has been updates to Membership and Buddypress Xprofile Custom Fields Type plugins and somewhere along the updates, a custom checkbox acceptance box used on registration no longer works.

When I set the registration process to use default buddypress form, then the checkbox form is visible and works - when i select the Membership registration page to integrate with Buddypress, it vanishes and is not outputed in html on the registration page.

I have to use the buddypress registration process to allow email verification but must have a member accept site terms!
please help, regards Craig