can you do a stylus hold and bring up the context menu of MRUs, on the MRU screen? If so you should be able to move the brightness icon to the right, moving the others to the left. The MRU on the left side of the today screen is #1 and the right one is currently #12, though mtkates said he would probably change that in an upcoming release to #2.
So basicly you want to either unpin the brightness icon, or move it to the right allowing whatever you do want on the left side of your today screen to be #1. you can also stylus hold and select "move left" on the icon you want to be #1 until it gets there.
hope that helps and if not, sorry!
I can do a stylus hold on all of the icons except the brightness one, and the one in the number 2 spot has the option 'move left' greyed out.