It seems to be that Carrara isn't picking up the new elements for some reason. Even though I have double checked that the elements are being installed into the correct directories as defined in the read-me file - for some reason Carrara can't see these items.

I had been trying to open the scene directly but when I look for the scene in the presets it isn't there, on checking the other elements, such as the leaves, they also aren't there, so the scene is probably failing to load because it can't see the required elements. Why, I have no idea.

I have submitted a support question and will wait and see.

Suspect it is something to do with Vista and where Cararra is expecting to see things.