Thanks! These helped a lot. I was able to get all the partitions shifted around correctly and now my Home partition is expanded (as pictured).
Unfortunately, in the process something I moved apparently screwed up the boot partition, because now Mint won't boot. When I restart the computer, it goes to the dual-boot menu (set up originally using this tutorial http://www.linuxbsdos.com/2012/06/06/ho ... windows-7/
) and I can boot into Windows 7 from there. However, when I try to boot into Mint, it just stays at a black screen with a flashing command line cursor. I've left it sitting for at least ten minutes a few times and nothing happens. I imagine I need to rewrite the boot partition, but I'm not sure how to do that without wrecking the dual-boot setup. Any help would be very much appreciated. I'm almost there!