1. Goto your homepage by signing in with your username and password. 2. To add your profile picture: On your home page, on the left hand corner you can see options like- profile, scrapbook, photos, videos etc. Just beside profile there's a link- edit. Click on it. 3. The page will take you to edit profile. On the left hand side, you can see two options: add photo/ change photo. Click on it. It will ask you to browse photos from your computer. 4. to Add photos to your orkut album: On your home page, on the left hand corner you can see options like- profile, scrapbook, photos, videos etc. click on photos. First it asks you to give the name of the album and description. After you give it, the steps are pretty much same like you upload your profile picture. Select picture one by one and upload it. 5. You can go to too your home page settings and change the settings as private, so that only your friends can see your photos.
Orkut has been discontinued - in couple of months it will be totally gone - save your pictures elsewhere.