With the recent release of Ubuntu 10.04 Lucid, a new theme was included called Radiance.
Radiance introduced a movement of the window border controls from the top right side, to the top left side of the window.
Radiance_R (Radiance Right Side) is a modification of the Ubuntu 10.04 Lucid Radiance theme and I have moved the controls back to their original position.
This is a direct modification of the Radiance theme. The original name of this theme is Radiance, this version of the theme is called Radiance_R (Radiance Right Side).
No other changes have been made to this theme other than to restore the window border controls to their original right side position and reactivate the menu control in the original left side top position.
To install this them in Ubuntu 10.04 you can follow these steps.
System -> Preferences -> Appearance
Click the Theme tab.
Browse to the Radiance_R.tar.gz file.
This will install the theme automatically for you.
Once installed you should now see a new theme entitled Radiance_R.
Select this theme and you will have the new Radiance theme with the controls in the top right side position.