I have saved a copy of the default floor as a new prop and turned it 90 degrees and renamed it as background as well as a copy of the floor as ground.

I texture this for some scenes as background and ground/soil.

Sometimes I manage to do this and sometimes it just don't work. I only save a straight image. No bump or more. I still do not understand why I do what in what following order.

Where can I get a tutorial on texturing basic flat stuff or a simple thing?
I also noticed that the Tree props that I have downloaded from somewhere is actualy a photograph of a tree posted on a transparent background or ..... posted on a transparent flat background polygon.

Regards
Johan