MoneyServer.exe wont start

Hi, I managed to get this money module working on my local machine in windows with your help, I would like to now get it working on my gridserver which runs on Linux (Ubuntu 10.4) but when I start mono MoneyServer.exe I get this error....
** (MoneyServer.exe:20441): WARNING **: Missing method set_Instance in assembly /home/opensim/bin/MoneyServer.exe, type OpenSim.Framework.Console.MainConsole

** (MoneyServer.exe:20441): WARNING **: The class OpenSim.Framework.Console.MainConsole could not be loaded, used in MoneyServer

Unhandled Exception: System.TypeLoadException: Could not load type 'OpenSim.Framework.Console.MainConsole' from assembly 'MoneyServer'.
at OpenSim.Grid.MoneyServer.Program.Main (System.String[] args) [0x00000]

I am using the latest release on Opensim 7.4 but it works perfectly on Windows so I expect it will work on Linux also, any help would be much apreciated.
Thank You
Cam