Here's how we've been doing our in circuit programming. We have a 10 pin
header:

System VDD ------O    O----- PIC VDD
Reset Chip ------O    O----- PIC MCLR
system RB7 ------O    O----- PIC RB7
system RB6 ------O    O----- PIC RB6
           ------O    O----- System & PIC Ground (VSS)

=46or normal operation, jumpers are placed across the top 4 spaces to
connect the PIC pins to where they normally go. To program, the
jumpers are removed and a cable is plugged in that connects to the
right hand pins and is connected at the other end to the Picstart plus.
This way you don't have to worry about loading the programmer signals.

Bob

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