Thought orkut have not opened this channel of customized theme but people have found a way around of changing the themes of the orkut pages. But this change hardly makes any difference, firstly you can change the theme to the one you like but that theme will only be viewable to you only and not your friends.

Still if you want you can change the theme and a get a new look you would need:

1. Mozilla Firefox ( a free web browser)
2. GreaseMonkey or Stylish (firefox plugins)

If you don’t want to use Mozilla Firefox you can change the orkut theme with Internet Explorer as well just install

1. Internet Explorer 7
2. Trixie Plugin for IE

Once you have installed the plugins restart you browser, and then either go to [orkutplus] or go to userscripts install the scripts and start enjoying the themes. Though previously orkut experimented by releasing a theme for Holi an Indian holiday for Indian users only so very soon orkut will be officially launching the ability to chose your own theme.