Question About Train Driver 3, How To Do Demo Version-Full Version?

[Sugo77]

Hello guys!
I found and downloaded Train Driver 3 on aminet.net, and installed this game on my virtual HDD image in AmigaOS 3.9 in my Emulator WinUAE 5.2.0 64-bit. I even merged 2 versions of Train Drivers - Train Driver 2 + Train Driver 3...(This was possible in installing process, in options of installator of Train Driver 3)
All works fine, but!...
Now to my question...
When i run this game, then i always get message "10 mile demo - see docs for info about full version"
I used online .doc viewers in my web-browsers and learned full documents-all pages, and not found any info about how to do Demo-Version to Full Version of this game, why so? Why they said about it and no infor about it by fact? And now to question, someone know how to do this demo version of this game Train Driver 3 - to full vserion?
(Maybe need CD Keys, Registration or what need to do?)

P.S.:
Train Driver 3
https://www.lemonamiga.com/games/details.php?id=4211

Updated\Added:
Also i downloaded TrainDriver3up (Update) to Train Driver 3 also from aminet.net, but not sure, what this can help with my question...(Not tested update yet...)

[AndyFC]

These instructions are at the end of the Aminet readme file. The instructions are from 1997 so I doubt they are still valid. The URL doesn't work.

Send Cash, Guaranteed Cheques, British Postal Orders to the address above
OR pay by ACCESS/VISA/MASTERCARD from F1 Software Tel:01392 493580

For latest info:
http://users.powernet.co.uk/robins/