I just built this http://www.instructables.com/id/VUSBTiny-AVR-SPI-Programmer/?ALLSTEPS
My pc thels me that i doesn't recognize my hardwere.Flashing went ok.I used 100ohm resistors instead of 68ohms and 1,8kohm pull-up.I also added a filter cap of 47microfarads.The divice manager says something like:device descriptor....failed 
Thank you.