Minecraft SMP 1.8.1
IC2 1.15
Ok so everything installed ok, it all works fine on client side in SP, the world generates correctly.
I've installed the server as per all the available instructions. The server runs fine, you can go into game and using creative mode you can see all the IC2 items and you can craft the tree tap as per usual but none of the rubber trees or ore blocks are being produced by the level.
I've tried starting a fresh/new world and none of the IC2 blocks are included. I don't see the server producing any errors and there have been no crashes.
Any Ideas Guys?