Flashing Omnia from SD card

I'm having a newly developed problem related to my recent upgrade to Windows 7.

Windows 7 won't update the Mobile Device Center because I may not have the necessary admin privileges needed for that kind of installation, so the MsiInstaller won't complete the install of the updated WMDC drivers and therefore, while I can do file transfers and the like, I can;t do anything through USB like a program install or flash.

The only way around this, short of having the IT people at work change my privileges to that of full admin, is to do an install off of my flash card.

I've read that people have done that successfully with their HTC Touch Pro 2, by unlocking their phones with an SSPL file on their root drive and an nbh file on the card itself.

Does anyone know whether that'll work on an Omnia. And if so, what files do I need...where do I get them....or are they the same as those on the HTC TP2?

Finally, can I do a flash by putting UMDL on the SD card, together with the flash image file and run it like that?