I assume the update includes all components for the player, including Active X for IE.
The flash Player update for FF doesn't include Active X for IE!!!
You have to do 2 updates :
one with FF and an other with IE (or choose IE browser with the adobe download center)
However I preferred when SU says the current version and not only what version should be.
What about your current Active X version for IE from Adobe UI?
Start->setting-> control panel -> Flash Player