Just in case you haven't figured Voxer out yet, here's a quick guide for sorting favs and channels:
Connect Eurovox to PC using null modem cable
Open Voxer, and under utilities click 'receive service file'. This will download the current CDF file from your EV box.
Click start to scan for your EV box
In Tools, click on Favourites Manager, and expand favourites. You should now see all your favourite groups. Right click to add and remove channels from the lists
You can also use Programme Manager from the tools menu - this displays all channels available on you EV box, and by right-clicking you can rename
and delete channels, and also arrange add into favourites
Then simply 'send service file' under utilities to update your EV box with your new favs.
Easy as pie!