it's fairly simple : after saving any pics Du want from Suchen engines,go to your profile/wall/photos and click on photos,then Upload the Bilder and if Du want the image to be your icon,check the box and that image will become your icon.
Du have options like Profile, Wall, Photos, Clubs, Favoriten and Fans on your profile. If Du go to "Photos", you'll see "upload new photo" on the right side. Click on it. Then you'll see "upload image" where Du have to choose file. Du can Upload any Foto Du have saved on your computer. Du can add image caption if Du want. Click on "submit image" and it's done.
