But my photoshop skills are severely lacking.
Does anyone want to continue where I left off?
I've just uploaded a new map to the server. It's exactly the same dimensions as the previous one, but has some extra decoration thrown in around the edges. To try and give it a sort of ice rink feel.
I've created a floor, and if, within your moviepack/settings.cfg you set:
GRID_SIZE_MOVIEPACK 944
it will stretch across the grid quite nicely.
Oh, and you'll have to go into settings and change "Floor Detail: Textured Plane" to see the floor.
It looks somethink like this:

The floor I used is here, any designer might want to use it as a template:

I was going to sort of base it on:

If anyone wants to give it a go and they need anything from me, let me know.