Transfers and Stuff

[sexynyancat]

I'm trying to transfer my Tekkit Server to a regular Minecraft Sever...but when i log on to the world it shows me the sun the void and a horizon sort of thing with a bunch of black shady mobs falling. I can't do any commands (except in the command prompt thing) and after about 30 seconds Java craps out and I get the error:

Internal exception: java.net.SocketTimeoutExecption: Read timed out

I tried it with Bukkit and Minecraft server.

Also there are a bunch of:

at net.minecraft.server.v1_5_R2.World. something applyPhyiscs(world.java:450) or update(World.java:421) or setAir(world.java:421) etc..Please help...I dont know what files to delete to 'unmod' the server...

Thanks for any help!