I am beginning  work with PICs and have some early rocky roads.

Target PIC: 16C84
Hardware:
      Construction of Programmer:
      Based on Schematic Pic Programmer v3 by SG Willis 8.13.95
      (D0-D3 on parallel port, 7406 inverting buffers)
      A (modification of?) D. Tait's Design.
Software:
     Programming Software: PIC84PGM v1.05 by Nigel Goodwin

Unfortunately the end result is programming errors echoed back when I
attempt to program.
Error occurs immediately at DataLocation: 0.

Discrete questions:
  1.  Why does it not work, (i.e. why am I clueless),
  2. How should .cfg file for pgmming s/w be configured?
  3.  Is the CodeProtect for the 16F84 inverted relative to the 16C84?

Info is much appreciated....I hope I can return the favor at a later date.

Mike