dyackalXP,
Is there some particular reason you do not want to connect this system to the Internet? If so, could I ask why?
I have never tried to install hardware drivers on my systems without an internet connection. I would assume that it is "do-able" but I can see where that could be problematic in the extreme. Most things in Linux - Apps, Hardware driver support, updates and the resolution and installation of the "Dependencies" for various applications and updates/upgrades - will be
much easier with the ability to connect to the Internet.
Otherwise, you are going to have to determine what dependencies a package has, check you system for the existence of those dependencies and the version currently installed (if any are already installed), go online via some other machine, download the application or software you are wanting to install
and all it's dependencies, save to some sort of "portable media" and take to the Linux/Ultimate Edition system and install them from that media. The chances of missing a dependency or a relevant file or module is very great, and will most likely cause you a good deal of grief.
I'd recommend that you connect the system to the internet to facilitate the correct installation of software and hardware. Of course, if you want to keep the system off the Internet under "day-to-day" use, then just unplug the system from the Internet, and only connect when you want to install or check for upgrades/updates. Once the system is setup and operating as you want, there is no need to be in the Internet if you do not want to be there.