[patrickp]

If you're in a hurry, L33tZiggy, you could try the Memory Card Conversion Requests thread in the official pSX support forum - GM probably checks there more often than here. But he checks here pretty often, as well.

Edit: he says in the last paragraph of his first post there

while I can strip and modify a PS3 save for use on the PC, I can't convert a PC-type save for use on the PS3.

So you should be good.