Hi,
By adding exam 70-680 you will achieve MCITP with your current MCTS exams and from MCITP you can upgrade to MCSA 2012 with exam 70-417.
Danny van Dam, Citrix CCIA/CCEE Microsoft MCSE Server Infrastructure/MCSE Desktop Infrastructure/MCSA Server 2008, Cisco CCNA, VMware VCP 3/4/5 http://www.citrix-guru.com http://www.rds-support.eu