1. Contact Technical Support.
2. Updates may be greyed out if you have not selected the timeline as the active window. I remember having seen that same behaviour, but selecting the timeline first and then going to help/updates did it for me.
It turns out that there must actually be something in the timeline before the greyed out selections will appear. Just selecting an empty timeline in a new project makes no difference:
Fauho, Pr must be open for approx 30-50 seconds before any of the menu items you mention is aviable. It has nothing to do with selecting a Timeline, nor placing anything on it.