So I was trying to put a Win 7 installation onto a partition of an external hard drive using WinToFlash (WTF), but after WTF unable to lock down the specific partition I backed out of it by forcing log out, but now I can only see one of the many partitions on the hard drive. How do I find the other ones?
do a scandisk (with the box to fix errors checked). If the drive was reading or writing when you shut it down, some of the files might have been corrupted, a scandisk can usually fix this.
Sounds like WTF corrupted your partitions. I'd use something like Easeus Partition Manager instead to see if it sees your other partitions. http://download.cnet.com/Easeus-Partition-Master-Home-Edition/3000-2248_4-10863346.html If that fails, I'm afraid you'll either have to find a partition recovery application or format your HDD and start from scratch.
Yes chkdsk tho doing an install then backing out corrupts the file table on the extended partitions,you may be able to recover data using recovery software tho i doubt it