thanks all for your replies... ouch, Sony, great hardware, lousy software..
From reading the e-book.org forum i can see that developing an alternative software for a Sony reader is not an easy task.So i guess i have to learn to live with one-level folder structure.
Wow, i dont envy those with thousands of books on their reader.
And not being able to keep a chosen order within a collection is surely on oversight on Sony's part? Doesnt make sense to me.
Has that been the case with previous Sony readers?