If it's 2.6 then no go, if you happen to get a 2.0 then you can downgrade.
Now onto your next question, if your talken about downloading ISO images of GAMES that are copyrighted, that's a no no... we don't condone piracy, if your talken about ROM's thats a little different, a ROM is a image of a game from years ago.. I.E. Donky Kong.... now typically you should have the original cart to be able to use the ROM, but that doesn't seem to really be frowned upon if you don't.... I hope that clears it up.. you might want to CLICK
HERE to get more of an IDEA on what the big deal is about different firmware.
