Help! Incopmpatibility Problem.

I am trying to downgrade to tether and can't because:

1. The Verizon Maintenance Program won't allow me to unzip the i730.2.6V.YH25A.img file due to incompatibility with ActiveSync 4.2 (now on PC).

2. I can't find a version of ActiveSync 4.1 anywhere to download

3. ActiveSync 3.8 (which I have) is not compatible with WM5 (on my phone)

Can anyone e-mail i730.2.6V.YH25A.img to bwilson@newirelessservices.com and/or provide a suggestion to work-around this problem?

Thank you in advance.