Now you know what the problem is, are you going to fix the downloader code so it does work?? Sounds like the guy who wrote that code just used an index value rather than looking at the header of the hex file.

At least you won't have to swap eproms (eeproms) if you do this!


Personally, I would suggest you switch to isp flash based micros - much easier! My eprom programmer gathers dust these days!