Forum not appear at Module and Extension List after Install


Hi there,
Ive Upgraded ( Fresh Install ) my DNN to 6.01.
Ive instaled Forum 5.00.03 ( I think. Not sure if 5.00.03 or 5.00.04)
The problem is that Forum as disappeared :s
Ive cliked on " Install ", then ive got the message that dnn have installed forum with success, then BUH ! The forum is disappeared :s
I dont find him anywhere :s ... :
       At Host > Extensions > Installed Extensions he is not
       At Host > Extensions > Available Entensions he is not ( ok its normal ive install it )
       At Admin > Extensions > Installed Extensions ( Modules ) he is not
Someone have an idea of what it happenned ?
Thanks :-)