After updating my Tekkit server from 1.1.10 to 1.2.8d I found that all the pipes were missing, the machines were rotated the wrong way, and all my redstone energy conduits turned to leadstone and disconnected. Luckily I made a backup of the world before the update. I believe this to be an ID problem and I remember there being a tool to change all the block IDs in the world for when mods update. If someone could point me to this tool and the file necessary to fix this update it would be much appreciated. If not I guess I'll just have to restart the world.