Thanks. I guess telnet is working - it seems to do the same as putty now I have some commands to check it with.

However, I cannot get it to flash from the USB. I have tried from a couple of different USB sticks, formated fat32, copied the miraclebox folder to the root of the drive and turned the device on but it just bypasses it and boots to the old image. Any suggestions? Is there some other way of doing it?

I must have done it ages ago to go back to the version I ended up using, but that was a long time ago.