you have not specified the exact model number so offer a generic thru google
http://www.nteloswireless.com/1pdfs/...nuxInstall.pdf
BTW you appear to have a flip-flop.
the first time its installed its seen as a cdrom....to autoload drivers in the ms world.
the pdf says
but you have not specified your distro so it may not be that device.
with a different modem to you i eject /dev/sr1....where sr0 is my cd drive.
YMMV