This is my version of the programmer by Klaus Leidinger - you will find a huge amount of information about the programmer on this website so I am just going to limit myself to my Eagle files for the schematic and the PCB layout that I used.

You should look in the "/AVR Projects/AVR ISP Note 910" folder.

The boards is single sided and just has a couple of wire links. I made three main changes to the schematic: