You need an IDE - CF adapter, like this one:
https://www.amazon.com/Monoprice-Compac ... cf+adapterThen you need a CF card. Doesn't need to big - 1gb is more than enough.
The difficult part for you might be to open the CPU unit and install it instead of the old hard drive.
If you know someone with a bit of computer technichal skills, that might be helpfull.
Otherwise, I might be able to post some photos that could help.
After that, it's a matter of putting the images I made on the CF card.
Btw, when you get "error 43" it's usually an indication that there is no communication going on between the cpu unit and the desk. The reasons for this can be many - bad serial cable, bad umbilical cord, bad bios settings in the cpu unit, etc.
Anyways, take your time and we'll do our best to help you out.
Regards
Anders