Wow, I had no idea. Checking out the track listing for Sun Red Sun's first album, I see you are 100% correct. It's a trip to hear those songs with someone else's vocals: http://www.myspace.com/sunredsun - I prefer Joey's vocals obviously!
Yea, definitely weird, but Ray had a great voice and I heard the Sun Red Sun stuff long before Joey released his versions. I like Joey's versions better though.