First you use a Room of Soul Silver, like in a R4 or something? if no, I dont think so you can, but if you use maybe with this:
I dont know if the emulator of the psp is the same of VisualBoy Advance, you can see if its a .sav or .sgm, I tell you because the only way that I know is with an DS Emulator named DESMUME, you can use pal park with this emulator, only need the room of a gba game (emerald, leaf green, etc) and the save of that game, with that you can migrate your pkm to the R4