I have seemingly successfully installed imagehost to my vbulletin 3.6.8. But when I click on the [open] or [quick upload] I keep getting the 404 error. I have uploaded all the files that came in the forum folder to my server. And edited the templates, ect. The thing shows up, but wont do anything, just 404 error webpage cant be found.

Version check failed. No version number was found at this location. The URL for the version check may be incorrect, or the server may be experiencing problems. Please try again later.