This will sort it.
first things first, plug your psp into the pc.
when your psp files av loaded up, look through the files and search for anything you want to keep i.e save games. copy and paste the stuff you want to keep into my documents.
once you have done this delete evey file in your PSP folders so when you plug your psp into the psp it blank.
download the below file
Download Me
open this file and open your psp memory stick which should be empty. one by one copy and paste the 5 files onto your memory stick.
now youv done this when you open your memory stick you should see mp root, music, picture, psp and video.
now go back to my documents and the files you took out of your old set up put them into the new one, i.e saved games will go in PSP>SAVED DATA.
the logos are already there so you dont have to but my pack in.
if this doesnt do it then theres summat up with ur console. hope this helps