Here you'll find the musical in its entirety including all bonus tracks in MP3 format.

Star Wars-TheMusical (MP3)

The .zip file at the following link contains every track from the musical, with all vocal parts removed.
Many have staged their own version of the show using only these tracks as accompaniment.

Instrumental Version

As stated in the FAQ:
Full Score, Instrument parts and Lead Sheets are NOT available (since we never made them.)