I've never disassembled a Jetbook, so I can't talk specifics, but I am in the process of rebuilding a Creative Zen Sleek MP3 player -- which was also built not to be taken apart, and used a lot of tape and glue. One tool that I found helpful was a guitar pick -- it's thin, relatively rigid, but didn't hurt the plastic parts. You might also try a hair dryer to loosen some tape or glue -- just heat it a bit, don't cook it
