I've read the entire thread and found http://kibergus.su/en/node/3 but still I don't know how to configure it properly...

ussd number: *111#
parser: echo "Saldo: %1"
regular exp: Saldo:[0-9]+\,[0-9]+
group numb: 1

i get always Error. what am I doing wrong?

i tried by command too..

$ python /usr/lib/hildon-desktop/ussd-widget.py 0
Translation file for your language not found
Timeout. Modem didn't reply.
Timeout. Modem didn't reply.
Couldn't init modem.