|Try this, i've used it to turn my laptop into a desktop wireless dongle:|
Go in to Manage Network Connections, or a page that shows connections (LAN 1, LAN 2, WIFI, etc). Your 3g dongle should show up there. Drag a box around your dongle icon and the LAN connection (it might say ethernet) icon and right click. Click on Bridge Connections. This should create a pass-through to the internet no prob.
Not everyone can decipher Klingon script...
chay' ta' SoH tlhe' vam Doch Daq