Buddyboss User Registration Conflict

Hi guys. FIrst off, LOVE gravity forms. But I am a bit challenged with implementation - let me say I am not an experienced php guy. So, now that you know I am "challenged" when it comes to this kind of stuff, here's what I'm trying to do. I can't seem to get the registration form to post to my site. I'm using "Buddyboss" as a theme and it looks like the "registration.php" for buddyboss is preventing my gravity form from turning up.

So I've posted it to another page. (http://sunasocial.com/test-for-form/) so you can see the form. Buddyboss' registration.php is posted here (http://pastie.org/5508344) so you can see it. Is there any way for me to retain the functionality within buddyboss and JUST get the form to replace the form that registration.php generates?

Thanks. Yes, I just want to use the new form I've created in the existing registration page (in order to keep the three stage registration process, the graphics e.t.c). I couldn't find "Enable Custom Registration" manually so had to post your link. Which worked, and I clicked on enable custom registration. But it still looks the same. My conditional fields, drop down menus e.t.c. are not there. It's the stock registration page. Looks no different really. Am I doing something wrong or is the existing registration page overriding everything I am doing gravity form wise?

Yes, I think that is the case. Thanks for helping, I've gone to Buddyboss to see if they can help by recommending whether I should modify the existing registration.php or clear the entire theme's registration folder and rely 100% on Gravity Forms.

Apparently they are unable to help me, and have suggested that I get gravity forms support to assist. I'm going to try modifying registration.php and see if I can manually port over the form fields.

OK, figured most of it out. I had to change the registration slug using a language edit file, which then neatly sidestepped the buddyboss registration stuff. Have a whole new problem though, now that the form shows up and works at "signup" (www.sunasocial.com) once I click on submit it give me this error:

Fatal error: Call to undefined method BP_XProfile_Field::bp_xprofile_field() in /home/content/68/5643968/html/SUNASOCIAL/wp-content/plugins/gravityformsuserregistration/userregistration.php on line 1427

Looks like a conflict, but I don't know where to begin looking. Any ideas?

That fixed it! Great, thanks Chris. Now I just need to figure out the best way to get the meta data from the drop downs properly channeled into my user fields.