well, the one way i use is i store the path of the image in the database and then read that path in my application code and render the image in the image box.
System.Drawing.Image and Bitmap classes are your friends to manipulate the image and display it like so:
System.Drawing.Image img = (System.Drawing.Image)new Bitmap(filepath);
the filepath is the path that you would read from the database.
Hope this helps...