Hi Dave,
If I follow the Steps to Reproduce detailed above, at the end of the process (after clicking Batch Add) I am brought back to the Main Dashboard where I see the "Getting Started with Omeka" title.
I am not taken to a screen where I have the option to upload the files. (I have already FTP'd the files to the chnm/curiosity/plugins/Dropbox/files directory) but i see no options through the web application.
A potential separate but possibly related issue:
As I was further testing the issue today, I encountered the following on Vista while using IE 7, when I select to add an item (from the main dashboard page), I see the list of items I uploaded through FTP with the check boxes. I also see the list of files in Firefox (also running on Vista). When I look in Firefox on OS X, I do not see the uploaded items.
However, if I check any of the boxes and finish add process, The images are then associated with one item.
This seems to be a separate issue. I have screen-shots if you would like them.
Thanks,
Matt