Hello Team,
Refer the following link to know more about the FMC deploying steps.
http://www.cisco.com/c/en/us/support/docs/security/firesight-management-center-virtual-appliance/118645-configure-firesight-00.html
If you are moving with a new installation , you can start with the latest 6.1. Refer the release notes to know the compatible version.
http://www.cisco.com/c/en/us/td/docs/security/firepower/610/relnotes/Firepower_System_Release_Notes_Version_610.html
Rate and mark the helpful posts.
Regards
Jetsy