Can you post the source code for the latest beta?
If you're publishing the source code for versions once in a while, it's a good idea to put everything on Github.
Also, a few feature suggestions:
1) Server command task with variables like %currentmap% - this is useful for automatic map reloads, e.g. creating a task with "changelevel %currentmap%" to reload it every few hours.
2) Custom command task on crash, to launch an external application(cmd.exe with parameters, for example).
3) Streaming server console output back to the manager. Might not work in windows, probably need to
4) The ability to rearrange servers in the list without having to edit the list files.
5) Remembering the show/hide setting for the console window.
6) Remembering the size and position of the console window, placing the window in previous position on restart/update.