Tenmiles is simply a name made of two common English words, and shouldn't have much trouble being prounounced (though the emphasis is on the first syllable, just so you know).
However, since I used to work doing phonetic transcription for a speech-recognition software company (transliterating words into CPA, Computer-Phonetic Alphabet (which itself is based on ISA, International Phonetic Alphabet)), I can show you what it would look like in that, but it would only make sense to a linguist:
t E n m aj l z
I know that doesn't look very interesting, so I'll leave you with one of my favorites; the CPA transcription for "butter":
b ^ ! *r
Edited, Thu Apr 14 14:22:36 2005 by Tenmiles