[Under the Sky]

Alright I used Boot Camp to partition my 250gb hard drive on my 2009 aluminum Macbook so that I'd have 32gb to install the Linux OS Ubuntu on. I installed it and had all kinds of fun, but I realized that it really didn't serve a purpose for me and decided to remove it.
Here is my problem: I had somehow managed to create 3 additional drives on my computer: one called Boot Camp (32gb), one whose name I don't actually remember now (I think it had something like 200mb on it), and one called Linux Swap (with 1.3gb on it). I used Disk Utility to remove the first two, but Linux Swap is still there. I cannot mount it and Disk Utility is unable to remove it or erase it, and in addition won't resize my Macintosh HD. Therefore, I can't regain the 32gb which I originally set aside for Ubuntu. I'm not sure why. There is just empty space and Disk Utility won't let Macintosh HD take it back over.
In an attempt to fix this, I downloaded GParted from the GParted website and burned the iso file to a cd immediately after the download completed. With the disk in the drive I tried to boot my computer holding the 'c' button, you know, to boot to the cd. It makes some noise at first, but then boots to OSX.
I have tried all of these things multiple times (which might be why I'm having trouble?). But I really am very new at this and am quite inept. I'm running osx 10.5 on a 2009 aluminum intel macbook, and although it might not seem like the Linux Swap drive takes up that much space, it is somewhat annoying to have on there. I just need to be walked through on how to fix this, if possible, and if someone could that would be awesome!
And if no one could help me fix this problem, maybe you can point me in the right direction to get help—however, I've already tried the Ubuntu forums.

And I was wondering if this partitioning business could all be undone with my Mac OSX install disks, and if so, how. Thanks!