Hi, I just have an iBook G4 1.33 ghz in replacement of my dead iBook G4 1.2.Since my ibook 1.33 has no airport extreme, I immediately transfer the airport extreme from the dead iBook.but when I opened the iBook G4,the placement of the Airport is different unlike the the iBook 1.2ghz that just under the keypads.How to install the airport extreme on my iBook 1.33?do I need to open the top and bottom casing? HELP!