Very easy!
Open the 'GnomePPP` in DreamLinuxControlPanel
Username number of sim-card
Password pin-code
TelNumber *99#
Then you go to 'configurations' > setup >ḿodems >type >detect
should show /dev/ttyUSB0
change type to /modem/USB
speed what you want
leave the rest
go to >setup > network
mark dynamic IP-adress
automatic DNS
go to >setup > options
leave everything, only
set idle-time as high as possible
This seems to be important!
Closing and connecting.
Works good with my Huawei E620, pcmcia-card, provider
www.kanguru.ptShould be the same with the USB-Sticks
The only thing to claim, that I have do get root before connecting
Greetz
Martin