I played GK1 shortly after it came out- possibly when GK2 came out. So I don't think it was an incompatibility issue as much as it was a game code issue. Lots of people suffered from the same bug, if I recall. There were save games that would have dropped me right where I got stopped... but somehow I lost my steam on it.
Since it's been over 10 years, I doubt I could pick it up where I left off and be plussed by the experience anyhow.