Mycncnetaccwoopie

Hi guys I'm new to cncnet, I've modded Yuri's Revenge, and runs normally via Ares, but have recently looked into getting it working via cncnet for online play. I've so far managed to get most of if working, but am having difficulty getting my new countries to work oncnet. They work fine without cncnet, but don't work here (online or skirmish, via cncnet). Can anybody advise how/where I have to add them? Thank you.