To make this tips easier I use the image iv'e done in the previous tips.

Open the image you would like to have in the black field. Hold down the ctrl button and press A to select all the image. Now press : EDIT/DEFINE PATTERN.

You will now work with the outher picture. Mark the black field by using the Magic wand tool and hold the shift button down.

Press EDIT/FILL and a new window sould apear. Use settings as the picture shows. It's important that you choose pattern in the scroll menu or it woun't work. :)

Now it's done and you have come a litle bit further on you're first inteface !