Nipring

So about 12 years ago i bought a modded (x3) xbox from a guy on the neogeo forums. Worked fine for me for a couple years. Then one day it didn't. I bought it, used it, but did not build it. I had no idea what to do, was raising kids, etc So into the attic it went. A month ago my 20yo son pulled it out and asked if he could have it. Of course, but i didn't know why it wouldn't go into a dashboard anymore. And after a couple weeks, its found its wayback in front of me to provide some dad help. I've paid the upgrade fee here so i can spare myself the hours of searching the web for downloads for me to experiment with, but...i still don't see a download section anywhere. Logged out, logged back in, nothing. Is there even a dedicated section? Thanks