you'll need to stick your eboot.pbp file inside a directory like so: X:/PSP/GAME/GAMETITLE. You will need custom firmware, I recommend 3.71 m33 for PS1 games, there are reports of higher versions not working with PS1 games. No other emulators are required. Hope this helps
there are some psp website that have ps1 games.So we just need to put it in the game folder.Is that right?
as long as the games you download are in eboot.pbp format, then yes. The complete file structure should be X:/PSP/GAME/GAMETITLE/eboot.pbp If you have 3.90 m33 and have problems with games freezing/not loading, you may need to try a program called popsloader. If you need help with it, check out the sticky here.