Can't get homepage to be blogs instead of signup

This is probably a no-brainer, but I keep trying to find the switch and can’t.

We’re moving to (multisite) instead. If you go to, you’ll arrive at a signup page. For some reason it worked fine on mentormarkets, but I can’t figure it out on tradingpits. All I need to for the home page to display network blog entries instead of the signup page.

Any suggestions?