I've tried adding attachments to posts - small images etc., well within the 300k limit I've allowed.

There's no warning that anything's gone wrong, but no attachments show up - either separately or inline.

Where are the real images stored? i.e. not just the information about them. Where can I physically find my JPGs in the file structure?

And most to the point, why aren' they showing up in the post?

Help appreciated.