I remember I freaked out about that too....what you do is go to Help, then ABout 2draw...then find a link that says Sketch Studio and click it...then click download now...and that will enable the controls for tablet pressure....and then when you go to draw...click the P in the upper right hand corner of the drawing box...and YAY, you have tablet pressure controls!!
drawn in 4 min
Well, ya, if you allready have installed it and it still doesn't work, you just restart your comp. And that should fix it.