The 1980 adult film ULTRA FLESH features a great disco version of "Mexican Hat Dance" that I can't find anywhere!

I used to correspond with DJ Jimmy M but haven't heard from him in ages and I understand he has moved on to other walks of life...? I would ask him but he seems to have vanished. He did discover that the adult film "F" used a theme song by Roland Kovacs, and since the same director (Svetlana) also did ULTRA FLESH, I thought this may be a Roland Kovacs song from the Selected Sound Library...?

Any help would be appreciated!

Please listen:
http://rapidshare.com/files/247762084/Ultra_Flesh.mp3