TransAdelaide now run tram and train services for The Office of Public Transport, known as Adelaide Metro. The current TransAdelaide fleet stands of 21 trams, these being:
Millennium refurbs: 351, 367, 370, 374, 380
'80's refurbs: 357, 358, 361, 364, 365, 368, 369, 371, 372, 373
Restaurant tram: 378
non-refurbs: 363, 375, 376, 377, 379.
From your list, GM28, 366 has been scrapped. It was sold to a local enthusiast and stored for some time out at Salisbury. This enthusiast has now on-sold it, it is now located somewhere in the Adelaide hills.
The Millennium refurbs are the ones that have been refurbished in the past few years, incorporating a new chopper control system as previously mentioned.
Of the non-refurbs, 379 never had Adelaide Metro stickers applied - it appears to be being cannibalised. Some parts are missing (can't remember which ones, doors IIRC). 363 appeared to have some work done on it, but after the work went down the back of the depot, where it still is. It has a sign on the side: "$14990" The sign is visible from the river side of the depot and IIRC, it has no crouzet equipment. 375, 376 and 377 have not been seen in traffic much now - I saw 376 in traffic during peak hour as a single on 2 March 2004. The tram was cut-in from depot - I had boarded 374 as a single @ stop 17 during peak hour and observed 376 depart the depot ahead of us. This is the last I have seen a non-refurb in traffic. I don't know if any non-refurbished trams were used on the Adelaide Cup traffic - I was working that night and had spent the day down at Goolwa.
All other red cars are in regular traffic.
Restaurant tram 378 is usually seen down the back of the depot with a tarp over it (protecting the interior I assume) but for the last week or so it has been in the workshops at the back of the depot.
TransAdelaide are generally running coupled sets during the day, but the odd single gets out. A sighting of a single set during daylight these days is unusual.
I know of no recent accidents, 365 derailed near the 6th Ave crossing about a year ago (some photos on my website) but it's been back in traffic for quite a while. In early 2002, 363 derailed at the Brighton Road crossover while shunting. TA can't really afford to have too many trams out; with 15 operational trams (fitted with Air-Con) and a peak hour requirement of 12 they're cutting it fine.
All observations made from outside the depot premises and trackside.
Will make a trip to the depot tomorrow (during daylight) and re-check some of these observations for you as well.