Reply to LED pushbutton switches

So. I understand how to solder the linear and audio taper pots... I have four pushbutton led switches that Im going to use for FX presets 1-4.
Im a little confused as to how Im going to solder those. These are the buttons Im working with:

http://www.radioshack.com/product/in...uctId=3159591#

I see in the schematic where the two +/- 1.5v's are but then Im having trouble figuring out my output and ground...

then after that what other additional soldering am I going to have to do since Im dealing with LEDs?

Any links that might be helpful will be greatly appreciated. And thanks again for these community s. You guys rock!!!