This is the best I could find, random differing information. Normally between 6 or 9, however those two forum posts I linked earlier said 1 and 8
http://www.game-ost.com/albums/1062/...on_soundtrack/
http://translate.google.com/translat...ed=0CE0Q7gEwAw
http://ogdb.eu/index.php?section=gam...ongameid=28646
1. Apocalypse 4:33
2. Vegas 6:28
3. Main Title 3:05
4. Apocalypse (Paris Classic Mix) 4:54
5. Secret Invasion (Suspense Mix) 2:14
6. 47 Elevator Theme 2:11
7. Club Heaven (Ambient Mix) 3:14
8. Hitman Blood Money Trailer (Ambient Mix) 1:30
9. Main Title (2005 Retro Mix) 4:12
or
1. Apocalypse (Paris Classic Mix) 4:54
2. Secret Invasion (Suspense Mix) 2:14
3. 47 Elevator Theme 2:11
4. Club Heaven (Ambient Mix) 3:14
5. Hitman Blood Money Trailer (Ambient Mix) 1:30
6. Main Title (2005 Retro Mix) 4:12
Track ordering seems different on places too. So not sure if all the versions were identical.