IOS 7 and drop box

[Nicknamegrief]

I was advised to back up certain things in Dropbox before updating to IOS 7, I did so and it has all vanished!

Any clues?

The dropbox website should keep a backup of everything, even if it's "deleted", for 30 days. From the website you should either be able to see that it is not deleted and the problem is with syncing to your devices, or it has been deleted and you can get everything "restored".

Trying to look for them now.

University files ... haven't been opened for 30days so am a little worried.

I think it's 30 days since deletion rather than since last opened.

When you get on the dropbox website, login, find your file directory look at the top and next to the search box is a button for deleted files.