downgrades. . .is it safe?

ok i just downgraded my psp from 2.0 to 1.5. . .but now i have a question or questions i should say. . .now that i have downgraded i wanted to know if the downgrade is saved to my memory stick and i can only use it when it is inserted. . .or is it back to 1.5 again?(i hope that made sense)now i dont have a browser and i have been reading the tutorial over and over to try and get the browser to work on 1.5. . .what the hell am i missing?also. . .if you hide the corrupted data when you download the emu's is there a way where it can corrupt your memory stick at all?in fact can it?can it mess up the whole system itself?what's the worse that can happen

nono, when you downgrade, You downgrade..its not saved into the memory stick. Its been encoded into the psp itself. Technically, for the browser, all you do it drag the folder called "BRW_GAME" to the root directory (thats where your folders "PSP" "MP_ROOT" and such are located)

and you could drag the folder "PSP" into your root directory if you want. But if you already have that folder in your memory stick, then just open it and drag the 2 folders called "BRW" and "BRW%" into your folders "PSP"--->"GAME"

and launch the browser. Thats it.

and corrupt files arent really corrupted. Thats just another name for "memory stick 1" So no, the corrupt data will not harm your memory stick. (long ago, homebrew required 2 memory sticks)

and i started using homebrew right after they figured out how to do it one 1.