Kubuntu 10.04 .run file help

[MFK2133]

I'm new to Linux altogether. I installed World of Warcraft and have it running, but my framerates are low. I have it set to run in OpenGL already, so I figured I'd try to update my graphics driver.
I downloaded the driver and it's a .run file. I have it set to run as an executable. When I run the file, I get a window that asks for my password. I input my password and press enter. Shortly, I get a window that says I need to run this file as super user. I tried to go into the command line and I typed "sudo home/nicholas/downloads/ati-driver-installer-10-8-x86.x86_64.run". I put in my password and Konsole tells me "run: command not found". How would I run this file in Konsole using super user?

[AlphaLexman]

I don't know about the 'ati' version, but when I installed my nvidia driver (a .run file), the 'X' window manager could NOT be running. That means you will have to log out and log into a terminal session (no graphics)

[MFK2133]

It worked! Thank you so much for your help.