Hi, I've installed exhibit all OK - it seems to be working in as far as its browsing the images directory, uploading files and creating thumbnails.
It just doesn't want to add the images / directories to the preview pane.
I did spot that when i click the "insert html" button, it's got the wrong directory in there ( misses the "images" directory - i.e. it shows http://myblog/myimage.jpg where it should be http://myblog/images/myimage.jpg
the images directory seems to be correct as it allows me to upload / browse it.