So I’ve ‘gone native’ with Windows 7 and it’s now my primary OS.

If you want the answer without reading all the crap I went through- scroll down to the heading.

I got my Thinkpad x61t up and running with most of the drivers just using the Lenovo Updater utility.

The ones I’ve struggled with are the UMTS Cellular card and my fingerprint scanner. This post is about how I solved the UMTS card issue.

1. Unpack the MSI file you download from Lenovo at C:\DRIVERS\WIN\WWANUMTS\Driver\MC877xx.msi by using something like
   msiexec /a MC87xx.msi /qb TARGETDIR="c:\temp"
2. Ensure that all your other drivers are up to date: I needed to install the various Intel AMT drivers from here first because it just wasn’t even detecting that I had a mini PCI card without these.
3. Browse to the Minicard device in Other Devices in Device Manager, right click, update driver software and browse to the Vista x64 folder that you unpacked in step one.
4. You may need to go back to Other Devices a few times to install the Modem Driver, Serial Port Driver(s) and Network Adapter Driver in that order
5. Eventually you’ll be able to open the Sierra Wireless 3G Watcher and get a signal for your carrier
   
6. From there it’s plain sailing