I am running Citrix Presentation Server 4.5 and TS on a windows 2003 sp2 server. I want to upgrade from office 2003 to office 2007 with VLK. Can some one tell me if I have to un-publis O2K3 first and then install O2k7 or can I just upgarde staright to O2K7? Will O2K7 be published instaed of O2K3 after the upgrade??