From Now magazine:

We found out that Adnan's picture agency Finalpixx was trying to sell exclusive shots of the couple together for the first time. When we pretended to be interested in buying them, we were offered the set of 60 photos for £300,000. The agency admitted that it was '100 percent positive Britney had no idea' she'd been pictured and that the photos had been set up by Adnan.

source:http://community.livejournal.com/ohnotheydidnt/19351629.html

300,000.00 EUR = 444,951.60 USD