To upgrade from 3.0 or 3.1b it’s just to unzip and overwrite the old files. Also see Install & Upgrading WordPreciousss.
WordPress’ default themes for WordPreciousss
There’s also a WPMU edition of the package, where the home theme is set as a Child Theme of the Default theme.
The normal themes should work without WordPreciousss installed, but the home theme for mu won’t.
New Precious Theme: Faded Pink
And last but not least I’m proud to present the very first real (I don’t count CSS Play as a real theme) special made theme for WordPreciousss:
This is a feminine, greyish pink/ beige two column theme, with rounded corners and elastic width.
The theme requires at least WordPreciousss 3.1 to work.