Looking at the boxrec line on this one we see the following:
2006-12-29 ? 0-0-0
Saraburi, Thailand W KO 6 10 Wiki Biography
http://www.boxrec.com/boxer_display.php?boxer_id=270911
I just watched the fight and the opponent in question was Richie Mepranum
http://www.boxrec.com/boxer_display.php?boxer_id=335594
Not sure if the reason this was left out was because no one knew or because there was some question as to if he was actually the opponent, but after watching the fight (of course I can't understand or read Thai, but the announcer clearly said his name) this seems to be the guy.
Hope this helps.