Fix to use window controls of the Ubuntu 10.04 new themes on the right-hand side.
1 - Put the files inside each folder on /usr/share/themes/Radiance/metacity-1 or /usr/share/themes/Ambiance/metacity-1 (will need super user permission)
2 - Replace the files. (make a backup first)
3 - Reload theme
PS: To put window controls on right side do:
"press Alt + F2, enter "gconf-editor", navigate to /apps/metacity/general/button_layout and set the key value to "menu:minimize,maximize,close" (without the quotes)."
tip from our friend johnnyg
PS2: System Updates can replace the files back to the left side version.