With some changes in BT4 from beta to Pre-final I had issues getting wireless to work. Had been using:

in the beta version.

Now have to use:
/etc/init.d/wicd start

in the Pre-final.

The getting started tutorial at the bottem of the wiki page still mentions using NetworkManager and it wasn't until I took a peek at the Up and Running video that the solution was shown.

I'm new to the Debian environment and Linux in general so don't intuitively know were to go to get things working. If the wiki were to get updated it'd help save alot of time for people in my situaiton.