Expand 3TB drive to 2TB (for use in HD)?

I am trying to press a 3TB drive into temporary service in a TivoHD until I can get my hands on a more suitable replacement. I realize the system won't recognize the full capacity of the drive, but I'm hoping to use as much of it as I can. I've got a backup of the original 160GB image I made with WinMFS that I'm using as my starting point.



However, I can't figure out a way to tell any of the tools I'm familiar with (WinMFS, MFSLive, jmfs) to create a larger partition at the end. I can limit the image to 1TB with WinMFS, or expand it all the way to 3TB, but don't know of any way to stop in the middle.



Does anyone have a suggestion for a tool or command option I'm missing?



Thanks in advance!