Urgent Issue; auto redirect (on new community) is losing my members ..

Hi,

I have setup a MU Buddy press website on a subsite.. this is the main community for the MU install, it is at c4cc.co-lab.cc… when people goto the http://co-lab.cc they are redirected to a user sign up form (see screenshot) I need them directed to c4cc.co-lab.cc (not this signup form)

Please help..

– Mark