Hello and thanks to John_Tavendale for the answer, I can't install the 800-900 version and I don't know what do you mean with "your save location", I extract the files and run them, but shows the message "you must have installed the 600-700 version in order to install this product", and I can't terminate the installation. The 600-700 v. 1-3, is installed on my FS9.Anybody knows what can I do?What is wrong?Many thanks.John.

unzip to say the desktop, then run the exe file from there.. :)Other than that, uninstall and reinstall the 600/700 from scratch