Well, you have to remember RS for PC developed and released way before W2K, Win95 was the latest OS in wide use at time of release. I don't think Lucas Arts is at fault in this case, developers try to make thing BACKWARDS compatible in order to reach as much of the market as possible.
Microsoft is the one who failed here, they didn't make new OS compatible, why are you not complaining about them? You must be brainwashed, had to go out and buy the latest MS OS to make Bill Gates even richer didn't you?
Do like khilen suggested, contact Lucas Arts technical support and ask them for help on anyway to get RS to run under win2k. Be warned, ask nicely and be polite, or nobody will help you. And don't come on these forums bashing RS or Lucas Arts and expect to get anything but flames.
Ties are flies, swat'em!