I have updated the server to Minecraft 1.6.4.
For a short time, both mcMMO and TrainCarts will not function. Once these plugins are updated and work on 1.6.4, everything will be back to normal.
Edit: All updated and ready to go.
Minecraft 1.6.2 had an exploit which allowed someone to steal someone else’s session and log into a server as if they were that user. This affected us directly, and someone logged as me (alfonsojon), giving them full access to the server. Fortunately, David (Drak1234) restored the server, but this should not happen in 1.6.4
The only major reason this update was released was to fix this major security flaw.
Regards, Jonathan Alfonso (alfonsojon)