More than likely, it's still on your original partition. When you mount a filesystem onto a pre-existing directory, the new mount takes precedence. Here's an example to illustrate what I'm getting at...
Suppose I have a directory layout like this:
Code:
/home/me
|- documents
|- downloads
\- mnt
\- floppy
\- test-dir
Now, let's say I have a floppy with this structure:
Code:
/
|- code
\- images
If I were to execute: mount /dev/fd0 /home/me/mnt/floppy
I would get this structure:
Code:
/home/me
|- documents
|- downloads
\- mnt
\- floppy
|- code
\- images
The point is test-dir gets replaced by the contents of the floppy. When I unmount the floppy, test-dir will "reappear". I'm guessing that since you modified your fstab, that your new home partition is automatically mounted over your original /home, and is hiding the backup files you made. You could probably access it by unmounting your new home partition, and then examining the /home directory.
As a side note, whenever I want to move a filesystem, I usually boot off a rescue disc (like Knoppix) to prevent any user or system activity from interfering with the move, and then it's simply a straight copy from location A to location B, editing the fstab appropriately, and rebooting... No worse than going into single user mode in my opinion.