Hi.. i bought the delta force series on steam.. now i want to play dfx2, when the game opens i have to log in.. so i did that (i have a account on novalogic) then i got a popup in my screen from steam with the serial number in case i need it.. but when i log in then comes a message from the game that i must put my serial number on novalogic.com.. now i look everywhere but i cant find where to enter my serial key.. (i can't put the serial key in my steam account also)