I bought The Sims 3 + University Life via Steam and it wont let me download items from the exchange

[lindshews]

I just purchased this game and wanted to get some extra content from the exchange but it keeps saying im not registered and i need to enter my code, but i never got a code because i bought it through Steam, is there anyway i can get this fixed?

[rumbutter]

see if this will work for you http://forums.steampowered.com/forums/showthread.php?t=1735097