I just got done reading a answer by John Baxter of Hi Tech Spec, where he went into detail to address accessing the CMOS battery(and also describes removing the screen), but something doesn't seem clear to me. John refers to a rectangular cover to be removed in order to access the ribbon cable for the screen, but that cover seems accessible only after removing the keyboard, which he doesn't seem to give instructions for.

can anyone help me please?

Heat Geek, April 2008

Remove the cover between the keyboard and the screen 4 screws where you can see them, 2 around the back on the hinge cover.

The keyboard will lift free, but some have adhesive to lock it down tighter. Remove the black plastic cover from over the keyboard cable using a screwdriver to pry it off where there are reliefs provided.

Gently unlock and pull the cables from the connectors on the motherboard.

Remove the black plastic cover in the back right of the keyboard tray the same as you did for the keyboard cable cover.

Unplug the connector for the LCD panel.

Remove the ground strap that is attached to the microphone mount (if it is present). You may wish to remove the microphone to prevent damage from the next step.

Lay the screen back as far as it will go and support it from the back. Remove the four screws holding the LCD panel and the screen is free. Be careful, as the clearance between the hinge mounts and the sides of the lower case can be very tight.

Assemble in reverse order.

Dan Harper, May 2008