Orkut is unlocked one more theme , Bus Stop (Waiting, waiting, waiting for the bus to come). Now they have two more to be unlocked, they are "AJA Tiger" and "Tea House".

Now the theme facility is available for almost all, if you don't see this facility now also, just wait for few more days it will come. One main thing is that the themes can be visible only to those who have this facility, others will see the profile in the classic Orkut style.

Check the top bar just left to your email address, there will be a change theme link if you have this facility activated.