The issue is just like you describe... firebug tells me DOM CSS and JS are missing. I edited the folder names and reinstalled... However the problem persists... any other thoughts?
For the sake of disclosing all symptoms, I have also noticed that I cannot click the image gallery page in the site tree and go there, I have to click on it then refresh the page to get to it for some reason...
I was going nuts trying to get the dataobject_manager js and css loaded on a site I just built. Worked on my local copy but not the live site. Everything was named appropriately and in the right place but no matter what I tried I got a 404 error when trying to access those documents. In the end I simply renamed 'dataobject_manager' to 'dataobject_managerx', created a new 'dataobject_manager' folder next to it and moved all the files in to it and somehow it started working. Some sort of quirk on the hosting/file-structure side of things. Maybe it's the same for you.
I also had this problem using the DataObject Manager downlaoded from GitHub (unclecheese-DataObjectManager-8808fda.tar.gz) i then fell back to a previous version of the module i had been using and the interface was then working
i had no UI styling too, i fixed it by adding data object manager & uploadify then DEV/BUILD
then add image_gallery and DEV/BUILD again. that seemed to fix it.
still having other issues though!
latest version of image_gallery and ss 2.4.5
it all works fine locally, but as soon as i upload i have problems.
clicking "create image gallery page" does nothing. (emails an error to me saying: Error: Uncaught Exception: Cannot move /var/www/vhosts/cafemusicstudios.com/httpdocs/assets/image-gallery/NewImageGalleryPage-8/ to /var/www/vhosts/cafemusicstudios.com/httpdocs/assets/image-gallery/NewImageGalleryPage-10/
At line 422 in /var/www/vhosts/cafemusicstudios.com/httpdocs/sapphire/filesystem/File.php )
if i refresh, the page appears, but if i try and upload an image it throws up a server error. and emails me a very similar error message to the one above.
looks like permission issues with image_gallery creating directories?
but my whole assets directory is 777.
AND ive even tried manually creating the directories myself and giving them all 777 but it still fails.