multiple images/frames from one picture

where can I find a tutorial/sample on how to use a big picture from where I can extract parts of it to render them on screen.

I have for example a character and all his animation is in one image file. Also I have one image with differit ground textures and I want to use only some of them.

Thanks

AFAIK Tile Sets are not supported.

But I think there is an option to extract single frames from a tile set.

sad. well, this means i have to use something else. thanks

Or you could use something like http://www.photoscape.org/ps/main/index.php which has a nice image splitting function and just slice that image into pieces easily (as long as they are proportional).

wow. thanks for the tool