I'm using Wireless Tether 2.0.5-pre3 and just not getting it to show up in windows.
When I use the same version on my MyTouch3G, it shows up fine in windows and works well.
From the DroidX I don't see the Android Tether at all.
I tried Barnacle, and it shows up fine in windows and seems to connect well. I get a little data tranfer, but the window on the Droid shows repeated reconnects du to 'NAT' at times, other times seems to work well.
Right now Barnacle seems to be working.
Wonder what is going on, especially with Wireless tether.
Phone: G1, MT3G T-Mo , Droid 2, Droid X, Nook Color, Galaxy Nexus, Galaxy Note 2