Config for USB 3G

[hqthao]

I have google many results to config USB 3G.
This is one of a link I have do for tutorial:
http://dgthanhan.blogspot.com/2010/0...th-fedora.html
But the last step is ... using 3G, I still cannot see my 3G device.
Or I have use installer.sh on USB 3G, and I successfully install (there an USB 3G icon), but when I clicked it, it just loading some seconds and shut down
I still do some others tutorial but still cannot connect.

@: Before doing these step, I have type command: lsusb, but I cannot find my USB 3G. So, does it useless when doing these tutorial when my machine doesn't see it yet ? (my windows use it smoothly).

Who give me a help,please.
thanks