Koala have a video of the swimwear shoot here: http://www.koalamensclub.com/koalaswim/Colt_Preview.wmv
We see him being prepared for the some of the pics by being blown by a woman (so you are warned). Maybe this is a prelude to some proper porn? He does talk about launching his own website soon - times must be tough in ER!
He was a favourite of mine 10 years ago, but I don't feel he has aged too well.