Used this also. Make sure to disconnect quick and then after it the update is available make sure to connect before trying to install the update or you will have to try it again. Worked flawlessly.
As I suggested in the other forum, back up all your photos and music to computer with zune. Pull the battery, keep it out 30 sec. Put it back in, and if that doesn't do it, reset the phone. Settings | about | reset my phone | yes | yes. If that doesn't do it (I bet it will), call Verizon for tech support.