Well i'll be doggoned but I had already tried that, but since you recommended it I decided to give it another shot and by golly it worked this time, I must have fat-fingered it somewhere the first time
May be you didn't click OK for changes to be written to the
fstab (in the last window).
And
Just16 is right - their names should be shown in the file manager and when you click on them they should mount at your request.