i got the edge one, not a single problem.
go up to ford, and tell them you need a edge rear wiper arm assembly and blade assembly. i read somewhere that someone also got the cap with the arm assembly however i didn't check before i left to see if it was included so i had to make a second trip to get the cap also.
total was under 40 for everything.
focus sport cool-flo, f2 v.3 header, trubendz 2.5 SS, frpp 1.5" front sportline rear, vf rear engine mount, 93oct Focus Power tune