tranny oil cooler

I've heard some good things about the tranny oil cooler from you guys, so I picked up one off e-bay. Has all the parts, new in the box. But how do I put it in? I didn't see a howto in the how to section...is there one around, and I'm just not seeing it?

Also, it's my guess that i'll probably have to put more oil into the tranny once this is in. Anyone know how much?