I'm still here, although it has been years since I fired up my N2PK. When I last did, I used a Win7 Lenovo T400 with a docking station that provides a parallel port, etc. DG8SAQ software is wonderful with the N2PK
My N2PK is an original build; I did the first detector mod and actually bought a v2 board but never populated it. Still have it, some loose parts and a spare crystal oscillator laying around here someplace.
I've moved on to the DG8SAQ/SDR-Kits model with full 2-port S-parameters for bench work and for single-port field use, a DG5MK FA-VA5.
I still believe that Paul led the way for these.
Wes N7WS
Wes Stewart