Since I think you want to restore the entire state of the tablet, have you tried this:
- Remove the drive from the tablet.
- Connect it to another computer joined to your server. I would use a USB to <interface> bridge device; select the device based on the interface on the drive.
- On the computer you've connected the drive to, run C:\Program Files\Windows Home Server\ClientRestoreWizard.exe.
- Identify the tablet, and choose the backup you want to restore from.
- Choose the new tablet drive as the destination.
- Restore.
- Reinstall the drive in the tablet. See if it will boot.
ClientRestoreWizard.exe is the same tool that the Restore CD runs, just hosted in a full Windows environment.
I'm not on the WHS team, I just post a lot. :)