Focus Seat Repair

OK, got me a Focus 1.8 Zetec just before Christmas. (I'll post some pics of it up when I've washed it as its filth! Blooming weather) anyways, the passenger seat has its adjuster knob missing. But there seems to be a bar which sticks out the seat which is also needed. Perhaps the pics will help. In short, I don't want to splash out on a new frame, as its like £130-£250! Was wondering if anyone else can point me in the right direction. Oh, and if you say get Cobra/Recaro/Sparco whatever seats, then sure, I'll send you my bank details, and you can transfer over ok? :D The parts guy at Ford is unsure too.

http://www.flanderz.net/stuff/seat/2.jpg

http://www.flanderz.net/stuff/seat/4.jpg
This pic I took is the driver seat.

http://www.flanderz.net/stuff/seat/5.jpg