BuddyPress.org

I’m using Seventh Queen ‘sweetdate’ theme on WP 3.9.
Since I installed BP 2.0 I get a blank white screen when I edit users profile fields and the answers to the profile fields are still fractionally above the titles… not aligned.
I have deactivated all my added plugins leaving just the ones that came with the theme and have removed all my extra added CSS style code. I have re-installed BP 1.9.2 by swapping over the files in my FTP so I assume I have 1.9.2 even though in ‘plugins’ it’s still showing 2.0… Confusing!
Am I still on 2.0? Should I totally remove BP and re-load 2.0 again? Or try going back to alter version again? Help!