These voices can be found at arrangerworkstation.com on the PSR3000 forum. I wrote there:

"Thank you for posting these. There are about 10 that I will definitely use. After tweaking the Liquid Guitar, I finally have a pedal steel voice that I am satisfied with. The 12 String Guitar sounds better than the Live! voice that comes with the PSR3000. I like the faster attack on the Sweet! Soprano Sax. French horn sounds excellent."

Beakybird