01 fog light???

I need to find a replacement fog light assembly for my 01 gt. My old one is full of water and has turned yellow! I ordered replacements through DallasMustang but the part they sent does not fit. It is the same size and shape but it does not attatch in the same places. This is the part they sent that doesnt fit.

http://www.fordpartspro.com/cgi-bin/parts/process.html

part # 19-5359-01


Any help ???