This is popular recently and this is the best Windows Vista based skin so far. The author of this skin is unknown

1. Copy the "vista.chm" and the folder "vista" into the root folder of your TransFlash card
2. Establish Telnet connection and type:
# cp /mmc/mmca1/vista.chm /ezx_user/download/appwrite/setup/theme/
# mkdir /ezxlocal/download/appwrite/skin
NOTE: do this mkdir only if you never done it before
# mkdir /ezxlocal/download/appwrite/skin/vista
# cp /mmc/mmca1/vista/* /ezxlocal/download/appwrite/skin/vista
3. Restart your Motorola ROKR E2 and give it a try