iPod Touch third generation front panel connector cable

I am unclear on how to disconnect the ribbon cable connecting my front panel to my third generation iTouch. From past experience, I think there is a bracket that needs to be pried up. In the step by step guide, it shows the tool being used to pry at a spot adjacent to the ribbon cable. Is this correct? I think the bracket is under the small grey plastic cover also visible in the picture. I am ordering a replacement screen but want to be clear on what has to be done before I attempt this repair. I already have the cover off, and so have taken a look around. Thanks! Adam