Welcome to the pond! You will need to get the "Treasures of the Deep" game here, and play it, and then activate the screensaver. I haven't played this game myself but there are quite a few games that have associated screensavers. To find it, click "Download Games" at the top of this page, then "PC Games" (assuming you have a PC and not a Mac), then "Find a Game". Either click T and look for it or type the name of the game in the search box. Then when you find the right page that talks about that game, you click the Download button. You should get 60 minutes of free trial to see if you like the game enough to pay for it.
You might also look through the laptop to see if the game is already installed on it somewhere. If you see an icon on the desktop that shows a green fish and says "Play my games" then click that and see if Treasures of the Deep is listed. If the game was already played on that laptop for 60 minutes then you won't have any trial time left but you would be able to just click the Buy button to buy it instead of downloading it.
Edited on 04/07/2009 at 5:47:33 AM PST