Where can I get Carmen Sandiego's Great Chase Through Time for free online?

anyone know? sorry, i'm picky, and i only want Where In Time from 1997 or Great Chase from 1999 (in other words, no the one from the late 80s/early 90s). i used to own this game, but i can only find the 2nd disc and its weird cuz i've torn my house apart looking for the 1st disc, but no luck. i've tried limewire and a lot of websites, but again no luck..help anyone? i have windows xp.. thank you!