I am actually having a similar issue and I was hoping that the instructions given in the past posts would help, but for some reason my gallery is not showing up.

I am trying to embed the image gallery into a tumblr page for an artist website.

I followed the instructions to a "t" including downloading dropbox and moving the gallery folder to dropbox.

The code provided by you guys just makes a large white area and nothing shows up.

Is it because I am using chrome?
I would love some help.

Thank you.