PokerTracker

Hello!
I play in Full Tilt on Diamond-state and I would like to have a proper stat for tracking my rake.
I don't know if this could be found in another topic, but I have to ask how to make a custom stat?
I can't find a stat for this (winnigs+rake) but I would be very thankful if someone could teach me how to do this.
1. How to download a custom stat to my PT4 from warehouse
2. or how to make one from start to finish
I have to say that I thought I was good with computers but this drives my mind of.
Thanks for allready if someone would be so nice to help me with this.

I haven't yet had a chance to look into their new calculation method in detail for assigning FTPs. But it's definitely on my list to do.