Since the game was only a bonus to the Ed Hunter album by Iron Maiden, I guess you just have to put in any audio cd you like and play with that music - otherwise download the album.
If you want the full retail, get this one:
ed2k://|file|Iron.Maiden.-.Ed.Hunter.(audio+game).rar|840902131|7BAB83675C648F6AC1F086155E69DA39|