need some help programming a pic

I have some hardware that has a PIC18F6680 pic cpu. This is older hardware
that is non programmable that we are starting to replace with a
reprogrammable version. The newer version is the basically the same, but
has a maxium max3233e rs232 chip, and a mini headphone jack that we
connect to a laptop to program with vendor software via a laptop w/serial
port. What would be the easiest way to reprogram these older pic chips? I 
was thinking maybe making a board with a power supply and that rs232 chip 
on it and temporally solder leads to the chip? Or possibly un-soldering 
the chip from one unit and soldering it into  the new unit, reprogram, 
and soldering it back into the old unit???? I can provide pics of the 
boards if anyone is interested..... maybe someone could offer a
reprogramming service if i provide the software? Thanks.

david wrote:
> I have some hardware that has a PIC18F6680 pic cpu. This is older hardware
> that is non programmable that we are starting to replace with a
> reprogrammable version. The newer version is the basically the same, but
> has a maxium max3233e rs232 chip, and a mini headphone jack that we
> connect to a laptop to program with vendor software via a laptop w/serial
> port. What would be the easiest way to reprogram these older pic chips? I 
> was thinking maybe making a board with a power supply and that rs232 chip 
> on it and temporally solder leads to the chip? Or possibly un-soldering 
> the chip from one unit and soldering it into  the new unit, reprogram, 
> and soldering it back into the old unit???? I can provide pics of the 
> boards if anyone is interested..... maybe someone could offer a
> reprogramming service if i provide the software? Thanks.
> 

DIP or surface mount?  How about a Chip Clip and a programmer like the 
Microchip ICD2? MCLR/Vpp would have to be clear.  And the other 
programming pins could not be connected to things that would bother the 
programmer.  In all there are a maximum of 6 connections.
  The max3233e would only help if the PIC already had a boot loader.