Jess,

>If you have the exact url address of MS tech forum equivalent to UT, please us know.

Also, lesser-known, are a set of newsgroups designed for direct MS free support of resellers and consultants. There is a group specifically for IIS/Proxy issues.

You can get to the groups by following the "Newsgroups" link, then choosing "Private Newsgroups". You will need to register as a reseller or consultant, but the access is then free, and very active with MS support people.

http://support.microsoft.com/servicedesks/directaccess/