player profile problem

I installed COD WAW on a new PC.  I had trouble finding my old player profiles for a while & made up a new name & played for a month or so.  Now I found my old player profiles on my old HD.  I copied two of my old player profiles & pasted them into the profile folder on the new PC but the only player profile that shows up is the new (recent) one I've been using.  How to I get the old player profile to show up?

Thanks,