No ores spawning in the nether. I am just wondering if I am missing something.

That fixed it right away, thank you very much.

You need CoFH World installed along with ore spawning configuration files for anything to spawn.
Please see the related project: https://www.curseforge.com/minecraft/customization/netherending-ores-configs
I have just updated those configs too to clear some things up and make it easier to understand.