Has anyone here succefully built a programmer to program a 12F683 ?

I was looking at maybe having a go at making the below programmer if it would work on the 12F683.

But I dont really understand Schematic drawings.
Also is there anyone in the UK local to the West Midlands who would be willing to make a programmer up for me, I would gladly pay them for there time and expense.

http://www.olimex.com/dev/pic-pg2c.html