I've been thinking there must be an easier way to do this - so I saved my file as a .docm file, so that there's no external templates to load. I then expected to be able to open the .docm file off the webserver from a client pc, possibly with that 'Enable macro' dialogue to begin with. Alas - Internet Explorer opens the .docm file as a zip file !
Grateful of any help round this.
Cheers.