Squilliam on 31 October 2008
http://www.techreport.com/articles.x/13671/3
See the long black and blue connectors on the motherboard *3 of them* with the white retaining tab? Thats where it goes.
There will be a metal plate which is either breakable or screwed on where your graphics cards fan outlet and monitor plugs want to go, make sure you remove those two.
I was building my computer today and I couldn't get my 8800gt into the case, I was like WTF?!?! Its single slot, but I was a doofus it actually used two of the bays instead of one and I was trying to shove it in where it just didn't fit. Took me 5 minutes to realize! So yeah I removed the other metal cover and it slid right in.
Btw ANTEC p182 cases fucking rock! 
Tease.
