Well, I thought someone would suggest something.
AFAIK, all I do is plug it this device with the IDE cable containing three plugs. Before doing that, I think I should install BetterWB on my new CF card, because it has program icons representing CD ROMs. After installing BetterWB, then plugging in the CD ROM drive, if my A1200 doesn't recognise it, then I'm %&$#?@!%&$#?@!%&$#?@!%&$#?@!ed! Unless people advise me what to do next, that is.
Hopefully, I'll find a German book about carrying out seemingly impossible upgrades to the A1200, then after following the instructions in it, I'll send a copy to Oldsmobile_Mike!