TRANSPERANT image?

Hello hello
Obviously its easy as to create an image and put in worlds and colours in the background.
My query or challenge or want or hunger lol, is to be able to make the image background transparent …
Anyone have an idea how to do it, or is it even possible???

I think this can be done, Let me try and then I will reply.
By the way, how much transperancy %20 or more?

my answer or solution or response or resolution to your problem lol, is to render the image with the KEY button enabled (http://wiki.blender.org/index.php/Reference/Panels/Scene/Render/Render) and also save the final output to PNG, which can retain the transparency for later editing.

Nice day to you.

what mike said, plus be sure RGBA button is on, not just RGB. which i think is also discussed in wiki section http://wiki.blender.org/index.php/Manual/Output_Formats

See this
http://wiki.blender.org/index.php/Manual/Raytraced_Transparency