No,
Xaraya is a fish, not an evil alien menace from Startrek.
Yes,
Xaraya comes from the same team that started postnuke.
It is in my opinion a very good system, but probably a little bit too complex for a normal user (if you want to use all the features - and that's really alot - provided).
There is no option at the moment to integrate xaraya and coppermine, but the two are similar in that they provide bridging possibility.
In Xaraya there is an authentication modules for the Invision board;
In Coppermine there are bridges for Invision and other forums.
So it shouldn't be too difficult to create a link between the two - having enough knowledge of both and enough programming skills :wink: