Music, intro videos, and cutscenes...

I downloaded the gold version of Heroes with The Succession Wars and The Price of Loyalty (31,111,672 bytes). But there are some problems. Specifically, there are no soundtracks, the cutscenes in the campaigns don't play (black screen), and when I try to play missions from The Succession Wars campaign, the game just crashes. There is also a version of just the second game (27,256,322 bytes), but after installing it, it doesn't even launch.

Any ideas on how to make these games fully functional?