Can anybody help me find a university that offers a PhD in Thai/Engl Translation, preferrably in the US. Thanks.

The only PhD program in Translation thus far in the US is at Binghamton University http://inside.binghamton.edu/news/newspage.cgi?issue=2004may13&id=3 I don´t think you will find a program as specific as Thai/Engl at the PhD level, because PhDs in Translation are theoretical and not practical. You might want to try an MA program instead, if you want a practical approach.