PSP-1001 released in 2005
Chat with our AI personalities
2008
Well either you need to update your PSP system so it may be able to read the game or you need to take it back to the place you got it from
If you mean a game save [under Game > Saved Data Uility on your XMB] then the games that you play will automatically load those for you. If you mean a saved homebrew game, read the readme.txt they usually come with, it will tell you to move all the data to "psp/game" or maybe "psp/game150" ect..
XMB stands for Cross Media Bar, and is the interface for the PSP system. Basically, it sorts the content of your PSP into categories like Game, Video, Music, Network, etc. From there you do things like listen to a song or start playing a game.
the game has to be game share compatible. you basically got to gameshare on your psp and then your friend loads the game up n his psp.