Orkut doesn't allow you to right click on images and save them anymore .
Here's the solution :
Step 1 : Find a picture you like on orkut
2 : If the image is too large , press the F11 key to switch your browser into full screen mode ( Works with internet explorer , firefox and a couple of other browsers .) If your image fits on your page skip this step .
3: Now press the ' Print Screen ' button
4 : Now go to Start > All programs > Accesories > Paint
5 : Now , Go to edit > paste
6 : Save your image
7 : Enjoy
8 : Use can also edit the pic using paint : - )
9:By the way , this neat trick can be used anytime ..not only while surfing the net . Just press Print screen and you get a screen shot of whatever is on your screen .
There's a pic of my scrapbook on orkut , saved using this method !