According to this ESPN article
http://sports.espn.go.com/mlb/news/story?id=4403920 he got a $7.5 million signing bonus, $2.5 million 15 days after the approval of his contract and another $2.5 million on January 2010. It's an unfortunate situation, but from the looks of it he was already paid at least $12.5 million before the season even started.