get the no intro patches from gcw.
dun overwrite all mpgs if you still want the intro but the rockstar splash logo...
search for gta3 at gcw, then get both. i preferred the one sized 10,244 than the one sized 10,240. coz i found that 10,244 one give blank (black) screen (ohya, it will stop at gta3 main screen... you gotta press something to go to game menu...) while 10,240 one give transparent screen (you can see your desktop) which quite annoying, as most people will think that the proggy had halted/crashed...