I ordered another 64 MB RAM module through another vendor, thinking it would be a different one since the picture on the Web page for the module showed a PQI RAM module.
(Less than $8 before shipping, so a small risk.
) So it came today, and when I opened it, there was another Edge RAM module. My fiirst thought was, Wonderful, here we go again. But I figured there was no harm in trying it out, so I put it in - and 64 MB total RAM showed in Control Panel -> System.
Checking the number on the chips, I see that one character differs between this one and the other one. I'm going to contact Edge and ask them to explain how someone else can locate the correct Edge module when Edge itself can't. Maybe, just maybe, they'll be embarrassed enough to give me my money back for the one they sent me.