hi gutmensch,
although i succeeded in using a 3g-modem on a manual way, the sakis3g-script didn't work for me.
i guess that there are still some unresolved dependencies...
unfortunately there are no messages that give a hint...
in the moment i install the needed tc-packages, copy the config-files to /etc, transfer the pin to the modem and finally i start the connection. all these steps i've written in very, very basic "scripts", but it works.