[proFit-list] Registration

[Bruce.Slee at csiro.au]

To whom it may concern:
I bought pro fit 5.6.6 and installed it in my older Mac in 2001. I tried to install it on a much later Mac operating system (10.6.8). but before installation I am asked to supply a registration. Can you please tell me how I obtain it?
I would be interested in downloading the latest version of pro fit. I've no doubt that it has been updated several times since I bought 5.6.6.

Thanking you
 Regards    Bruce Slee