Regarding the songs on the soundtrack
They are all credited to Lamont Dozier and Gene Page. Here's a list of the titles. I've tried searching for Straw Boss in particular with no luck. The movie credits say the ost was released so it looks like the only way to get hold of these songs is to track down the LP or tape.
http://wwwdb.oscars.org:8100/servlet/impc.DisplayCredits?primekey_in=1999090818:05:355-1674759
"Worthington, we're being attacked by giant bats!"