I'm trying to install the Planes Mod found in this forum post:
[1.7.3] ModLoaderMP for CraftBukkit and Canary. Supported Mods: Flan's: [ALL], SDK's: [ALL], Alblaka's: [IndustrialCraft], Balkan's: [Weapons] - Minecraft Forum
And it is supposed to work with bukkit, so I attempt to install it into the minecraft_server.jar, as instructed and launch the sever.
But the server never launches, it stays stopped, almost like its saying "nope! cant do that, you've modded this file".
I'm sure I've done everything right, copying all the .class files into the net/minecraft/server folder, deleting meta-inf and adding the properties and txt file into the server folder, but nothing happens, the server just doesn't start.
Can anyone help? I've asked multiplay support and they said while they (understandably) don't provide support for these kind of mods, there is no reason why it shouldn't work