I don't have the free arm monogram attachment, but do have the one for flat bed Kenmores. Granted, I haven't tried it, yet. Could you take a picture of the attachment top and bottom off the machine? Also are there slots in the back that the tabs in the attachment fit into. I'm wondering if you need to have the 'arm' piece attached to the free arm of the machine, so that you can "snap" the plate portion into place????
Not often, but I have seen manuals that have incorrect images and instructions. I know I saw one that had the bobbin threaded incorrectly and another that had a page with correction stapled in a manual.
Janey - Neat people never make the exciting discoveries I do.