saving as jpg or png?

[micheus]

xucaen, first of all welcome; second, if you are thinking in something like a screenshot you can use that option present in the Tools menu. The image will be available in the Outline window and there you can select the image and use the option Make External to save it as .jpg or .png.

If you are talking about of a "beautiful" image that you use to see arround made by other users, then you probably will need to install a render software like yafaray, POV-Ray or Kerkythea (all freeware) and learn a little about how to use them.

You can start with this thread: YafaRay Rendering Software by oort