need official original to play IT online?

[pontoe]

ey all,
i really want to play titan quest online (IT), but i don't have very much money to spend. i know a friend who owns the original, but i'm not allowed to use his cd key, because he's afraid he can't play online then. i want to buy IT, and then install his version of TQ with a key he found on internet. but can i play IT online then, or doesn't that work? does IT also check the cd key from the original TQ when you want to go online?

[yerkyerk]

Questions about pirating really don't belong on this board...