They are all up to date. McAfee are in the middle of a phased release of an updated version of SecurityCenter so some systems will show the old and some the new depending on which server they deal with.
Basically if you right-click and check for updates and it says you are up to date, you are. Eventually 11.0.654 will upgrade to the higher one, but in the meantime there is nothing to worry about.
Regarding the one that you were checking for updates and it never seemed to end, that could have been that the servers were temporarily unreachable. Keep trying or wait until it auto-updates, and if it still does that or fails for some other reason, contact Technical Support, it's free via phone or online chat linked through Useful Links at the top of this page.
You were correct. One of the two updated two days ago and the other one updated last night. Now they are all current.
Glad you are OK now. ;-)