It seems the Chem sequence is what's going to delay you. You need to take at least 2 semesters of Gen Chem.. then you can move on to take O-Chem. At most schools, you need to take 2 semesters of O-Chem.. then you can move on take Gen Biochem. Some schools will allow you to take O-Chem for just one semester, then allow you to take Biochem though. Seems like entrance for 2011 will better suit your schedule.