Since I can't find any maps for Nitro Pack anywhere, I went through my hard drive and found my old install from a decade ago, and there they were still (somehow... thanks Western Digital). I made them into a RAR file for everyone to download. So, even though we can't play multiplayer on this game (as far as I know... spent 3 days trying everything), at least we can have all the good maps! I forgot what most of them are, but if I remember, it should be all the good ones. Everyone needs to try The Ruins. I dare you to get to the end of that map (takes at least 30 minutes, and if you die you respawn at the beginning). Also, I have tested it and all the maps I tried worked fine. To do Ruins and Racing maps, you gotta just make an online game (even though no one can join it, but we are still working on that...).
Here is the link: LINK REMOVED (We are converting Nitro Pack maps back to Interstate '76 Gold Version, because Nitro Pack does NOT work online AT ALL for some reason)
In the meantime, here's a link for ALL THE MAPS (Lightfoot's page)
Here's a thread explaining how to convert Nitro Pack maps back to I'76 Gold yourself (It's easy).
You're Welcome,
-DWI-

Woot!, thanks.