Yes, the actual name is Mastero Sproggy MK4.5
Sproggy is a long time member here who make the first design up to 2.8 I think. All base on the datasheet from Maxxim. ATX from begin from 2.8. Before that they are all AT form factor (maybe I am wrong here.)
Why don't you just build it yourself if Mastero didn't have it? All info are available from his site.