You should NOT have to use any of the hack mechanisms on the forums anymore, with WMDC 6.1 it just works (at least for me).
If you are up for it I would get back to a "clean" setup:
1) Remove any Windows Mobilde Device Center (WMDC) app by going to Control Panel/Uninstall programs then find in list and remove
2) Reboot (yes you don't have too but I always do)
3) Download the latest WMDC from the URL:
http://www.microsoft.com/windowsmobi...icecenter.mspx
4) Follow the instructions to install application, when complete reboot (yes again)
5) Make sure that the phone is plugged into a USB at the comptuer or laptop and not through a hub
6) Do a sync/setup to ensure the phone is talking to the WMDC, if this works then you are golden
7) Follow the instructions with BuildOS
If you have any issues you could try:
a) Right click and run as adminstrator
or
b) Go into WMDC, Mobile Device Settings, Connections Settings then uncheck Allow USB Connections, then try build OS, just remember to turn it back on when finished flashing
or
c) do b) then a)
You may possible have a USB driver issue, you could
1) Start Menu (orb), right click on computer, choose Manage
2) Navigate to the Device Manager section
3) Find the device in the list
4) Right click on device (Network Adapters/Microsoft Windows Mobile Remote Adapter" and choose properties
5) Inspect the information about driver (date/manufacture) and determine if appropriate driver (s/b Microsoft Corporation)
6) Click on drivers tab and check to make sure is version 6.1.6965.0 with date of 5/31/2007
Above is on Vista Ultimate 32 bit and yours should be similar
if these steps don't help, you could post your exact error and maybe someone here can help.