Going from memory here, with IL2 each time you press the 'Print Screen' button on the keyboard, the game will save a screenshot inside it's directory. This screenshot was in a .TGA format last time I played, which needs to be converted before you can post it on our forums.
Converting is pretty easy, just open the TGA screenshot in your graphics app, and resize it to a forum friendly size (probably 1024x768 or less) and then save it as a .JPG format file.
Now with this .JPG file, you can follow the directions on this post, which will get your images to upload and appear in your posts.
http://www.simmerspaintshop.com/foru....html#post7617