I am infected with "sponsorship" it keeps popping up adware windows, Norton 360 and Eraser won't fix

Sponsorship keeps opening adware windows on my computer.

I have used Norton 360 & Eraser and Spybot search and destroy, but "sponsorship" still opens windows.

I have: Intel Core i7 2600k, 3Gb RAM.

Win XP Pro, SP-3, Internet Explorer 8 ver 8.0.6001.18702, Chrome veer 29.0.1547.66m

 

How do I get this off of my computer?