bloodaxed

I am running a slightly modified AotBT server and it does not appear that the statues mod is working properly. Members can create the statue hammer and use it on a valid 2 high set of blocks. However, when they make their decisions in the GUI and then attempt to create the statue by pressing the "Sculpt!" button, nothing happens. The GUI just closes. Not even a message to the log in case of an error. All members have reported being able to make a statue using the hammer in their own respective single player worlds, however on the server both members and OPs are unable to make a statue. A

On the server that I am running, nobody is able to make statues with the statues mod. They can open the gui, but upon clicking the Sculpt! button, nothing happens. Does it not work in SMP? or is there a config option that I am missing somewhere?