PSP problem reading games

???Hi,Hope I am posting this in the right place - if not, sorry - could you direct me elsewhere!!I had someone upgrade/downgrade my sons psp to version 3.52 M33. I also bought a new 4gb memory card for his psp.I have moved everything from his old memory card onto the new one, pictures and music are working fine, however when I try any of the games it is giving a message data corrupted. Can any one help please??!!

google it so u will know how to do it or go to tutorial section and look for post named *PSP for dummies*

Hmm. You need to format your Memory stick using the PSP built in Formatting utility as M33 firmwares need certain directories to run. You really shouldn't get things like this done if you don't know how to use it.