YES! It's definately "Clipper Guatemala" The photo I have is of the A300 nosed into the terminal at Orlando, so although you can't see the registration, the name is clearly visible. The reason I'm asking this question now and not 12 years ago, is that the name was not in the fleet lists at the time. However, Pan Am was notorious for changing it's aircraft names as they served in different areas of the world. This would seem to fit, as at the time I flew on it the A300 would have been based at Miami operating mainly Caribbean routes.
It did have it's full Air Florida interior, right down to the seats. They were green, with a very broad blue horizontal band, they were definately not standard Pan Am seats. The cabin sidewalls had 3 broad bands of colour, each covering one third of the height of the panel below the overhead lockers. The top was light green, the middle light blue and the lower was pale grey. In the toilet (I only used the rear ones) the wallpaper was dark green, I think, and had the Air Florida "af" logo at very frequent intervals across the walls. Also, the taps were gold plated. I remember being quite surprised at the time, the demise of the airline being some 4 years earlier. Anyway, I always regretted not flying the original Air Florida and so was pleased to be able to fly in one of it's aircraft. I guess Pan Am had more pressing troubles at the time than refurbishing aircraft that weren't desparate. The 747-100 that flew the previous leg of my journey was falling apart! It featured it's oringinal early 1970s interior, much of the cabin trim was held together with sellotape, some ceiling panels and centre overhead lockers hung down broken and the IFE system gave up the ghost 20 minutes into the flight. As a contrast, the identical plane that flew me home had clearly just been refurbished, with a totally new interior including much bigger sidewall overhead storages.
Anyway, thanks for your help everyone, I'll check those links. I know it's a long time ago, but If anyone's records go back that far I'd be greatful for any help