I'm not quite with you on this one. What's that got to do with SP2?
It looks as though you've agreed to view a popup - true?
If so, that's an ad from casalmedia.com, whoever the hell they are. I'd ignore it and be wary of it.
If the popup appeared without you requesting it however, it is a little worrying and would seem to be a particularly agressive type of popup.
Chances are you're infected with Malware or similar which is maybe letting the popup appear.
Only guessing though, can't be sure. Run whichever spyware programs you use and see what it/they find.