Heh, welcome to the club
Download and update labview, and when you open it up start a new project and look for a DriverStation 2012 template. To make your actual vision processing script, play around with the NI Vision Assistant software. That'll let you make a whole processing algorithm that it can convert into a Labview VI for you.
If you need any help with stages of this please don't hesitate to ask me. I've done the same thing, plus a little, and it's been a long and arduous path though seems to be well worth it so far. I'd be happy to give any information on my setup you need.
Basically, I have an image processing subVI in my dashboard. That spits some values back to the dashboard itself, and then over TCP, sends the x,y coordinates of the centers of each detected target to the CRIO. I've made libraries on the CRIO that handle its side of the TCP communication, and dealing with those x,y coordinates which I use for aligning the shooter turret.