You may now purchase the soundtrack from the Official TheBlackStallion.com website
In December 2001, this soundtrack was released on a small Belgian label
named Prometheus. Because Prometheus has no American distributor, this
imported soundtrack couldn't be found in most music stores in the USA,
except for those specializing in movie soundtracks.
http://www.moviemusic.com/title.asp?id=blackstallion
Audio clips are available at this link.