FYI. Looks like Partedmagic changed there site lately :S
http://sourceforge.net/projects/part...o.zip/download
Despite also having USB available the ISO is what you want.
Run unetbootin, click "diskimage" and then point to teh extracted zip folder and select teh ISO image. Select the right USB stick, then click ok. It will finish on its own and say reboot is required (it is not required unless you want to run it immediately on your PC then by all means reboot now, slect USB stick under Harddrive boot order.
Once in its a regular old linux, will update with the steps as I got through them but they are pretty self explanatory, like hit the start button, system tools, erase hard drive, pick drive, check secure erase (last option IIRC), its intel so you might get a second popup saying this drive supports super secure erase click ok, last intel drive I had took 30-45 seconds for a 320 GB... sandforce no matter what size takes 1-2 seconds.
Just went through making a new parted stick as I lost mine. And apparently I was sloppy and a PC I de-virused for a friend infected my HTPC, now I am getting "Microsoft detected Hardrive failure is imminent"
Its actually a rootkit virus pretty yucky but fixable. Going to secure erase the OS drive and some SSDs while I am at it, then devirus the storage drives after I reinstall and secure the OS.