Progress at last! Started from scratch and recreated the part then edited the svg files with Inkscape. That screwed the font size (and the connector pins) immediately on loading to parts editor. Editing the removed pins out of the fzp file (which I hadn't done before) fixed the missing connector problems and the fonts were still 0 size. So experimenting with the Inkscape svg files and following the advise in the fzp file format document and removing the px units from all the font statements using a text editor appears to fix the font size issue. Now all I have to do is figure out why parts editor is unhappy with the pcb file.
Peter Van Epp