There is no need to buy any additional software to use an iPod. The software that is needed is iTunes, and it's a free download. It supplies the necessary "drivers." Is the computer being used a Mac or Windows PC? If Windows, what version?
Go here to download the appropriate version of iTunes.
https://www.apple.com/itunes/
After running the installer, run iTunes and connect the shuffle to a direct USB port on the computer. The shuffle appears as a small device button on the horizontal bar that goes across the iTunes window. Here's a screenshot of my shuffle's device button on the iTunes window (upper left corner), circled in red.
Click the device button to show the shuffle's settings screen in iTunes window. Hopefully, you can get to that point. I can provide more info about syncing songs to the shuffle, once you get it to appear in iTunes. If the shuffle does not appear in iTunes, please post back with more details about your situation.