I can't use all of my unallocated space to make a partition. Any help?

Here's what I did. I took 12 gigs off of my Windows partition, and 8 gigs off of my Linux partition, in hopes of creating a 20 gig partition for Vista. The problem is, I can only use either 12 or 8 gigs to make a partition, and can't add the rest of it on. Anyone know why this is happening? Here's what it looks like in PartitionMagic:

http://Serv1.imagehigh.com/imgs/ih00...8_untitled.PNG

Idk why both unallocated spaces don't just merge into one like they usually do. Anyone know how I can use all of the unallocated space to make one partition? Thanks in advance.

You need to move the Linux swap and ext3 partitions into:
A) The unallocated space between them and the Windows partition,or,
B) To the unallocated space behind them.

Worked like a charm. :D

http://Serv1.imagehigh.com/imgs/ih00...2_untitled.PNG

Thanks alot!