Extending External Hard Drive Partition

Hello,

I used Vista's disk management to partition my 750GB external hard drive so that I would have a 32GB Fat32 formatted drive that my Xbox 360 would be able to recognize. After discovering that the Xbox would only recognize one partitioned FAT32 drive, I went back to extend/resize the hard drive's original partition with the unallocated memory I had already freed up. It warns me that it will delete everything and create a dynamic disk - which won't work since I am on a laptop (incompatible with OS).

Right now I am stuck with a ~368GB NTFS drive (original), two 32GB Fat32 drives (only one of which Xbox 360 recognizes), and ~270GB Unallocated.

Anyone have suggestions where I could ultimately revert back to one 32GB Fat32 partition, and the rest allocated under the original NTFS?

Any suggestions or direction is much appreciated!