Installing Windows 7 on my Thinkpad X200 Tablet PC

I don't think my Lenovo Thinkpad X200 Tablet PC is ready for the RTM version of Windows 7. I'm running ThinkVantage System Update 4.0 and it's not identifying all the proper drivers that I need. Specifically, I'm still lacking drivers for:

• Fingerprint scanner (drivers for Vista did not work)
  
• WWAN module (drivers for Vista seemed to work here)
• Serial port (probably the SD slot, but not entirely sure yet)

I'll play around to see what else I can find, but I was really hoping that ThinkVantage System Update 4.0 was going to identify all the drivers and utilities I need to run Windows 7 on my Thinkpad.

For now, I've put my old hard drive back in my Thinkpad. I'm typing this while running Windows 7 RC (build 7100). I'm hoping that by the weekend, I'll be using the RTM version.