Hi Pete,
Thanks for the answers. You've given me confidence to purchase and register FSUIPC. I'll do that soon.
The AvPlan EFB I am playing with is much more than you found. It provides planning and in-flight info for Australia, and what amazes me, is that it includes all, and I mean ALL Australian WAC, VNC and other maps, and profiles for a multitude of planes too. The maps automatically change from one to another as you move or zoom, and the aircraft profiles provide al of the weight and balance info, including a means of tailoring it all to suit a particular aircraft. I have found it extremely valuable, and it worked with X Plane immediately, too. I'll let you know more when I've got it working with FSX, and I've profiled a Jabiru.
VH-DUX