help with custom firware

hello im new in this forum and need some help, well this is my problem: i want the cps2 emulator on my psp, currently i tried to use it with eloader and it works but when i start the game it turn off. i want to be able to play mvc and other games, right know i have other emulators that work perfectly like snesx,gbapsp, deadalus r10 and a genesis one using eloader and i have a 2.60 firmware, i wanted to ask if its a way to have cps3 and keep my other emulators working without bricking my psp, im willing to get a custom firmware but i want to keep my emulators, thanks

I seem to remember that 2.6 to 1.5 requires files from either
OFW 1.5, CFW with 1.5 kernel, or the unpatched GTA LCS game.
If you can't get hold of any of them, then upgrade to 2.8. This has a hi reliable 1.5 downgrader with all
needed files included.

CFW can be flashed directly from 1.5.

and of course , pandora's an option..

You can try a different Eloader (0.98 "porter"s a good'un)
but really , get a CFW installed.
It's worth it