Need help with MOSFET pin assaigments

I have a quick but rather important question. I am using this MOSFET http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=IRF530NPBF-NDfor an H-Bridge that will be controlled by a vex controller.

http://media.digikey.com/photos/International%20Rectifier%20Photos/TO-220AB.jpg

My question is, what are the pin assignments exactly? Which pin is the source, drain, and gate when looking at it from the front? I would really appreciate it if someone could help me because I do not want to solder the wrong pins.

Here is the datasheet for it if you want to look at it: http://www.irf.com/product-info/datasheets/data/irf530npbf.pdf

I really need to know this as soon as possible. Thanks as always.

I have managed to figure out the pin configuration.

For those that can’t figure it out, from the left the pins are:

Gate
Drain
Source

and the tab at the top is also a Drain.

(If you look at the last page of the Spec Sheet, it’s there)