Hi again!
I already posted in an earlier thread but since I am having the exact same problem i just wanted to reply to this quickly.
I will just be using the file offline/from harddrive. It seems that you, Conor, did find the problem, but I haven't fully understood what to do exactly.
In Chrome and Safari i see only the horizontal bar without any data and the 'X' to close - as the thread opener. In firefox the colorbox shows me the details, but not the cover image.
I can see both image and details when i open in another tab though. But then the layout isn't that nice

"If you need it to work from the hard drive, you would need to move all the jquery.js file and colorbox.js file inline into the single HTML page"
Could you give me a little more info on how that would be done?
Thanks so much!
Nik