Missing API documents? Where did they go?

[SToP_GAP]

I'm trying to access certain parts of the API documents and for weeks huge sections have been completely missing (I hadn't looked before then so it may have been longer).

https://members.vbulletin.com/api/

Almost without fail, everything in the "functions" and "files" section is missing - just a completely blank document in the right-hand pane. What has happened to the docs?

I found a cached version of one page (the adminfunctions.php include) on google cache, which dates back to September 8th but the live page has no content now. Am I missing something? Have they moved somewhere?

http://webcache.googleusercontent.co...&ct=clnk&gl=uk

I'm logged in and everything to the members area of vbulletin.com and pages within other sections (any of the "classes" pages for example) all load fine...

Please help someone, I'm getting desperate! It's so time consuming picking through all the core files and includes trying to fathom out what every last argument does etc.