I just bought Xperia x10 and upgraded it to Android 2.1 but I am struggling with themes. I have downloaded couple of them from the market but I do not know how to install them. How do I change themes for Android 2.1?
In order to use those themes, you'll need to use the alternative launcher ADW.
As it says at the top of the description:
*Must have adw.launcher 1.3.1+ to use*