i pasted the a psx game to psp/games/then the name of the game. this is correct right?
but when i lok for it in the mem stick with the other games it says restricted content enter youir password. what is this password?

First thing is to know that Self created PSone games are only works on Custom Firmware. Create a folder and give it you game name and place EBOOT.PBP file inside this folder. Paste this folder inside PSP/GAME/ folder. If you have a custom firmware you can see the game icon under Game menu. Try it.