Turey's installer downloads FS2 and FS1 as a mod for FS2, with improved graphics etc, etc.
Simply run the installer selecting what you'd like downloaded (in order to play mods you have to select at least FreeSpace open 3.6.9 Executables and FreeSpace2 Retail Core. If you have high-speed internet and a decent computer I'd suggest downloading everything but the 3.6.8 Zeta Advanced MediaVPs with 710 patches. If you have an advanced PC you can download the Advanced MediaVPs. To run FSport (or any other mod) open the file in your FS2 directory called launcher, and set it up how you'd like. Go to the "MOD" tab and select the "fsport" folder and click "run" in the bottom-left corner.
There you are: FSport, ready to order.
EDIT: And what is FreeSpace: Battle of Deneb? Is it some version of FS1 in another language/country?