I am using vista x64 and here what I faced:
1. CTD whenever I tried to start a mission.
2. "Unable to initialize sound driver" warning when I start this game.
Fix for #1: Find msvcp71.dll is and msvcr71.dll on net, and copy these files in game folder. Game now works
Unable to find any fix for #2 so there are no sounds in game.
And now there's no one from lighthouse replying in any threads about bugs in game. Seems to me that they went in hiding after scaming people for money. Clowns