You may have installed linux the typical way before, Boot from cd, partition, install. Problem, Headach, data loss. Wubi is an automated installer for the "Computer Stupid". Big words confusing, just follow the instructions.
Windows 2000/XP PC
About 30 Minutes
Step 1: Settings
Step 2: Wait
Wait while it downloads. This takes like an hour on DSL.
Once done hit restart.
Before the Windows logo you now get an option window of Windows or Ubuntu. Chose Ubuntu. If no keys are pressed windows will boot in 12 seconds.
Wait while it installs a bunch of stuff. (See second image)
Step 3: Welcome to Your Virus Free Linux!!!!
Hackintosh picture removed, apple upset...