OK, I have been trying to figure this out for a while, and I don't know if I am searching with the wrong keywords or what, but I figure this has been addressed before. I even went through the FAQ, and all I saw was... "Yep, I use a trackball as a mouse"

Anyways, I have a trackball I want to use as a mouse, which is working fine. I do not however have left mouse click mapped to anything, which I need to do. However, I can't find anything that will allow me to map a button on my CP to the left click... Is there a port of the Ipaq I missed? Or is there a piece of software I have to use to emualte the click with a keyboard button?
Thanks for the help.
Anthony