I didn't get my HTC Mogul nor my HTC Touch Pro flashed at a Metro Corp store. I figured they could by now. Well since Metro Corps stores are still clueless, you will have to go a different direction. You will have to find someone that can flash it for you. Go online- Craigslist and find someone who flashes phones- in the Northern California area- Kareem is the man
http://sacramento.craigslist.org/ele/1390631835.html - Here is a list of some stores in various locations that can help you flash over your phone to metro
http://www.howardforums.com/showthread.php?t=1496674
Good luck.