imce wysiwyg bridge

Thanks for the hints at the April monthly meeting about how to handle images. Unfortunately, I encountered a snag following the suggestion of the "guy in the blue shirt".
The problem is that Configuration/Media/IMCE/Directories doesn't let you specify anything higher than , which turns out to be equivalent to the site name. For example, given the following directory structure "/sites/nimbleliving/files/...", IMCE defines the to be "/sites/nimbleliving".

I have all the 'dev' version of the modules listed above.

I click the image button in ckeditor, and the Image Properties 'window' appears. There is a field for manually entering the URL of the image, but there is no 'browse' or 'upload' button.

The configuration I'm using works fine with tinyMCE. Am I doing something wrong?