BuddyPress.org

I see many people have posted this problem but I found no real solution I am hoping so big time that someone can help me..

I have the newest wordpress and BP and members just can not register they get no registration email and I get as a admin only them showing up in the admin member section if I add a new user this user works but otherwise nothing happens
I left the admin bar visable I tried everything can someone give me a simple explination please

site is

http://www.mysunheart.com/love

yes we are hippies and tree hugers but that aint a reason we should not be able to get this running

helpppp