Yep, All you did is make a binary copy of the original dirve you need to run mfsadd with the -x option on the new drive and probably need an -r 4.kyleknicks said:
The Hinsdale method is out of date. You should start over and use the new MFSLive CD http://mfslive.com there are a couple of major bug fixes that were in the original MFSTools2 code. Another reason to start over is you should increase the swap partition to at least 127M just to be safe if the TiVo needs to re-index all those additional recordings you are going to have.