Bridge Connections on W7

[Wonderboy]

I can most definitely hook my PS3 up to my internet. But I need to bridge a connection from my USB Modem to my local area connection. I selected both and right-clicked but there was no "Bridge Connection" option. I would be very grateful for any help whatsoever. Here is my network box.

Yes, I know it is not shared in this picture, but even when I do, there is still no option to bridge.

[kinetosimpetus]

Have you tried logging in as an admin account?

[Wonderboy]

Yes, still doesn't work. I am getting very frustrated with the lack of support on PS forums. My IT teacher gave me a crossover cable to use, he said it would work instead of an Ethernet, but it doesn't. When I check the internet adapters, the LAN connection is an unidentified network and doesn't have internet access. Is this the problem?

By the way, I don't have a modem! I have one sort of speak, as a "USB Modem" that plugs into my USB drive. Seems the PS community can't comprehend.