Steam recently changed the default privacy settings for all users. This may impact tracking. Ensure your profile has the correct settings by following the guide on our forums.
I don't have the GAME150 for my PSP but I have 3.10OE then when I put it in the GAME folder it says The game could not be started. (80020148) Did I do something wrong and BTW when I make a GAME150 or Edit GAME there is nothing on mem stick on PSP.