A couple of months after I finished rewriting the Vinagre help in Mallard, I have had to come back to it because the user interface changed quite significantly (and will continue to change), so some of the help pages needed rewriting/removing/reordering. Dave also noticed that the online version of the help was rather old and Damned Lies showed more translations of the help than actually existed.
One bug and a fix later, the online version should always be up-to-date now. Damned Lies has also been updated (the bug was fixed very quickly by Claude Paroz) which was followed by a surge of translations! More are always welcome :)