This is a video on how to Replace the Keyboard on a Compaq HP Presario V2000 model computer.
Step 1: Remove the battery and the 5 Philips head screws in the battery bay, also remove the 6 screws on the bottom panel of the laptop on both the left side and right to the battery.
Step 2: Flip the laptop over and open it and take off the top panel with the Power button and Wifi key on it. Use a Flat head screwdriver to pry from the Left and Right sides of this panel.
Step 3: Remove the 4 Screws holding the keyboard in place and gently lift on the keyboard, detach the ribbon cable by gently pushing up on the right and left side of the two little white tabs and remove the keyboard.
Step 4: Take the new Keyboard and place the ribbon in the groove with the Connectors on the cable facing up like shown, MAKE SURE the ribbon cable is all the way in and flush, push the little white tabs closed and Screw down the keyboard with the 4 Screws.
Step 5: Snap the panel for the Wifi Key and Power Button Back into place and the simply flip the laptop over and return the 6 Long Screws to the outside frame of the laptop and the 5 Small Screws to the battery bay, Put the battery back in and try it out.
NOTE: If you upgraded to windows Vista or 7 on he XP models of these computers and are having problems with the Wifi Driver, Go to support.hp.com and search your product, Download the Brodcom Driver for windows XP, extract the files to SWsetup, reboot your system and tap F8 and disable Driver Signature Enforcement, Go to Computer the Local Disk C: and SWsetup and open the folder and run the setup for the driver.