Sorry that you had trouble finding the search functionality, however the search located on the very top of the page will search for contents within this website. If you are unable to use it, it might have to do with one of your extensions. (In fact I faced a similar problem and was frustrated not being able to receive search results; however, after enabling Google AJAX Search API, within my Ghostery plugin, the search functionality started to function normally.)
Also regarding the question of LCD panel swap, you will need to check voltages (internal voltages, not your AC power), check to make sure that the pins (and pin locations) are the same, and check to make sure signals are the same on each pin. It is not an easy task to verify everything, and is not a suggested procedure, unless you are willing to fry your components, and/or deal with serious bodily injury or death.
Computers and components are sometimes manufactured by the same company for different OEMs, however please keep in mind, that they are based on different specifications, and hence more than likely will not work with each other.
So in short, it is not suggested that you do it, however you may try playing with it at your own risk.