I pulled the classic mistake of not *backing up* before I went to reinstall and reformat. I backed up everything on a seperate partition.

I deleted my root partition on a dynamic disk, which not only made all my OSs unbootable (expected) it deleted my partition table and I'm left with an unpartitioned hard drive.

Is there any method that could be used to recover data from FAT32 partitions on that hard drive?

You'd have to throw it in a computer with Windows already installed as a secondary drive and use something like Active Undelete on it.

http://www.datarescue.com/laboratory/partition.htm