yar there are no extra charges in getting games converted from wave 4 to wave 3... i'd recommend you get the game from fuggyyy, i'm getting mine patched to wave3 from him tomorrow
yar you might not know what's your consoles fw, it could be 1.51 or maybe 1.4 unstealth ... or you could get you're wave 4 games converted to wave 3, BUT that way you'll be banned 99.9% probability ...