arduino uno; cant find ports for installation of drivers

I have windows 7, and arduino uno board. While connected, i went to device manager and i dont see the PORT option in order to install the drivers. I even unplugged it and plugged it back in, green light flashes, but no response by computer.
I dont have any whats wrong.
Please help.

I had had the same problem. so i re-installed the IDE . Select the 'Windows Installer' link from the downloads page on arduino.cc
And the wizard should help you from there on.

This didnt work, i had the correct ide.