Dual Boot Windows XP and Ubuntu (easier way)
Please read the description.
DISCLAIMER: If something goes wrong with your dual boot, it's not my fault. If you run into problems PM me or leave a comment and I'll try to help you.
There's a better way to partition your drive:
Windows 7 dual boot tutorial (I cover iso burning/booting live CDs/etc):
Ubuntu iso: http://www.ubuntu.com/download/desktop
Unfortunately, imgburn, the program I used to recommend for DVD burning has started bundling itself with adware. In light of this, I now recommend you use the builtin Windows tool. Information on that can be found here: http://windows.microsoft.com/en-us/windows7/burn-a-cd-or-dvd-from-an-iso-file