I put game saves on my psp but my game cant read it!!!!

Welcome to fixya,

Here is the step by step instruction to put save games on your psp,

1-Connect your PSP to the computer using a USB cable.
2-Get the gamesave from a gaming web site.
3-Unzip the folder and make sure it is the one you want.
4-Get the folder that has the main game save in it.
5-Copy the game save folder.
6-Open PSP-savedata and make sure you don't have that save data but with your save.
7-Paste it and if you have a current save in it, press replace only if you want to really get rid of it or save it to your computer.
8-Check the PSP savedata on the PSP menu screen to see if it is corrupted.
9-Put the game in that you got the save data from and see if it works.

Hope this helps.