Morly from HDMU team have created an admin tool for many boxes. You can download it for Linux, Windows and MacPC.
With this tool it is possible to make a full backup of your image and you can flash this image in same box. I think this is the most important thing of this tool.
But you can also make a telnet and ftp connection from your PC to your box. Also included is a channel list editor and other usefull tools.
You can fully use this tool with this boxes. All other boxes are not fully supported eg. backup is'nt possible.
Here is the Downloadlink