Default ItemID: 200
Description: The Allocator sucks in items at the input and throws them out at the output. If a chest or a dispenser is connected to it, it will be used as input/output.
Crafting Recipe (for 1 Allocator):
The Jump Pad
Default ItemID: 205
Description: Items and players on it will be thrown in the air.
Crafting Recipe (for 4 Jump Pads):
The Chest Trap
Default ItemID: 201
Description: Like a normal chest, but it will trigger adjecent blocks/redstone when items are being put in or taken out.
Crafting Recipe (for 1 Chest Trap):
The Light Sensor
Default ItemID: 206
Description: Similar to the daylight sensor, but instead of putting out a signal that is dependend on the position of the sun, it puts out a signal depending on the actual amount of light falling onto this block.
Crafting Recipe (for 1 Light Sensor):
Make sure you have no other mods installed that use those crafting recipes. Also make sure to Backup your savegame (no one knows).