I should be connected if you're using the same account login details for toribash and the toribash forums.
Once you download and login to toribash and play a multiplayer match everything should work just fine.
I'm the Event Squad Admin. I am also an ex-Clan Squad member. Have any questions about clans or otherwise? PM me.
Assuming you're asking if you can log in with your Steam account - no. You have to use a Toribash account which is the same for forums and for the game.