I'm not sure quite how old the regional outposts' backdrops go, but Dundee, Inverness and Aberdeen all suffer from the same problem. They have a fairly basic setup, with photos printed on rollerblinds - one for day, one for night. And as you say, the photos are ancient.
Dundee's daytime one is a fairly bad shot in the first place: it's a very odd perspective of the Tay Rail Bridge, which looks like it might have been taken from an aircraft, just after takeoff from Dundee airport. Perhaps someone at BBC Scotland thought that it needed to be immortalised as badly as its predecessor was by McGonagall. The nighttime shot (of RRS Discovery) is somewhat better.
This is a wider shot of the Inverness contribution studio, showing its not-very-good backdrop. That ParcelForce van has been there quite some time:
BBC Scotland Inverness contribution camera
, on Flickr
The 1999-era railings might help date the pictures, but then again they could be as old as the wall on the left. They've got some nicer pictures (complete with BBC News swirls) in the An La studio, but it isn't as easy to do down-the-line interviews from there.
The best of the lot has to be Stornoway, but then it's probably the most recent:
Glasgow's got a couple of different options - if they use the unattended studio (Studio D), then there's an odd shot from the other side of the Canting Basin, which has a fairly nondescript view of the Science Centre and Pacific Quay itself; whereas the newsroom camera position has a big plasma which usually has a live roof camera shot. But that too has a rollerblind, in case there's nobody around to set up the camera. (And a recording of the roof camera, where someone's done a very bad animation of the Clyde bobbing around in a somewhat unnatural way.)