hey,
I am using the newest version of Gridflow. Now i wasnt able to find #labeling which is referred to at this link :http://createdigitalmotion.com/2007/01/18/open-source-motion-tracking-with-multiblob-for-gridflowpd/ 

is it a function written for some program in pd? does it come with gridflow? or is it available somewhere on the net??

Sisil.