PNut Sources Available
I finally got this together today. I will be updating it as things progress, like with single-step debugging.
This should be everything you need to compile your own PNut.exe from original source files:
See the ReadMe.txt file for instructions on how to assemble/compile the whole PNut app.
Everything needed is included, except Delphi 6. Not sure where you can find this, but it's got to be out there, somewhere.