mobidata MBD-100EU USB EDGE modem on Ubuntu 9.04 OS

mobidata MBD-100EU USB EDGE modem on Ubuntu 9.04 OS

I can not use my mobidata MBD-100EU USB EDGE modem in my Ubuntu 9.04 OS. I am trying to use it and tried in different ways. Can anyone help me (giving instruction) to install and use this modem.