Not sure if this has been posted, but for those having issues with getting it to pop up on their system, and they're positive they have all the correct updates, try this:
http://answers.microsoft.com/en-us/...10-but-i/848b5cce-958b-49ae-a132-a999a883265b
Inside there is a command line script that you can create that will run. It will look like the script keeps on looping(apparently it can even take from 10-30 minutes, but it popped up after a few minutes for me), but eventually it should stop on its own, and then the Reservation icon will show up. Make sure when you create the script, you right click it and run as Administrator.
Thanks to a fellow GAFfer for this