BEFORE YOU START: Purchase your new RAM. The RAM you need can be found here:
http://www.crucial.com/usa/en/memory-ddr2/ct2kit25664ac800
Once your RAM arrives follow the instructions below.
On the back of the laptop there is a panel with the RAM logo. Unscrew and remove the panel revealing the RAM. Remove the RAM currently in the laptop. WARNING: RAM IS VERY SENSITIVE TO STATIC. ONLY TOUCH THE SIDES OF THE STICK AND BE SURE TO TOUCH A METAL SURFACE BEFORE TOUCHING THE RAM. THIS DISCHARGES ALL STATIC FROM YOUR BODY. Carefully insert your new ram sticks into the laptop. Re-secure the panel and power on your laptop.
Hope this helps.