http://thunderweb.jonnys-place.com/music/silver.zip

Doesn't contain the Warbot and Duel tracks, but like JelZe said, you're not missing much. =P I'll look for the Epic Pinball tracks in a minute. Oh, and I'm not sure which track is which, but Song0 is the menu and Song1 is Fantasy, IIRC.

EDIT: I'm not sure about what Jelze said about remixed tunes. When I played the Shareware Android, the sound didn't work, so I only ever heard anything on the full CD version. =P

EDIT2: Found the Epic Pinball tunes, also downloaded the shareware, but it seems to have the same Android tune. Oh well, at least I have the credits tune now. Anyway, here's the song order for Silverball:

SONG0: Menu (name seems to be 'User')
SONG1: Fantasy
SONG3: Nova
SONG4: Blood
SONG6: Snooker Champ
SONG7: Oddysey

From the fact that there are no Song2 and Song5, perhaps Warbot and Duel, or at least the music, were planned for the original game at some point =P

The Epic Pinball tunes seem to be in the order they appear in the game's menu (Song00 is the shareware credits tune: ) http://thunderweb.jonnys-place.com/music/pin.zip

So all that's missing is the old versions of tunes (although I did find an S3M of the old Android tune.)

EDIT3: Here we go.
http://thunderweb.jonnys-place.com/music/SONG1.PSM
http://thunderweb.jonnys-place.com/music/SONG2.PSM
http://thunderweb.jonnys-place.com/music/SONG8.PSM

Android is completely different, Pot of Gold has one note added to the beginning and Enigma is all high-pitched and weird.