I finally managed to install the Samsung SLC ssd. I f anybody is interested in the conclusion to this story, please see the Hard Drive Forum - Upgrading a HDD in a Samsung NC10.
If anybody is considering a SLC ssd, please, please go ahead. They are lightning fast, completely silent and run very cool. I get 7/8 hours battery life now. I am not sure how much of an improvement this, because my machine is very new, and I ran it mostly the mains mostly before the disk change.
Very many thanks to all who helped with my questions in this. This club is great.