So I've been googling around, to no avail. And before you say "copy config" that doesn't work.
I am attempting to run a tekkit server, using the current release. I believe 1.0.6. I get the server running, but my friend and I cannot connect. Due to ID Mistmach 102, 335, 79. I have replaced the config files, both ways. I have added the mods that come with the launcher to the server, the server refused to launch with them. The -only- way to get this pile to work, is to delete the mods from the launcher...turning it into stock minecraft. Only then can it run on the server.
Which would lead me to believe that the server does not come with the required files. When you add them, it refuses to launch.
My Win 7 is updated, Java is updated to 64 bit 25. I run a bukkit and vanilla server flawlessly.