is that the .QED file is too large. It was probably intended to be used with the 1:24k maps which would need to be cut down to a smaller area even with the .QC3 map format (and .QCT maps would need to have been cut down to a much
smaller area for a mobile device).
I believe you've also been transferring areas of the 1:24k maps. Cutting those maps should have produced some smaller .QED files. See if any of those files give some elevation data on the 100k map, either with their original name (if the correponding 24k map is present on the PPC) or copied/renamed to be the same as the 100k map.
The version number of WM on your smartphone might also be of interest (to MM support).