First off I take NO CREDIT for figuring out how to make these theme's this is just to show you how to put them on your phone. Please read this thread also
http://www.env-touch.com/index.php?topic=344.0**Disclaimer**
I make no guarantees that trying to add these new themes to your phone will work properly. You accept all risks of bricking your phone when you tamper within the filesystem.
1. I will be adding on of the themes that is in the post above just download the zip file and the different themes should be in there. I will be adding the green theme to my phone.
2. This is assuming you know how to use and install BitPim on your phone. If you don't please read this post
http://www.env-touch.com/index.php?topic=325.0.
3. after you have your phone set up and detected. Go into your filesystem and click the folder that says flash-ui-Menu. and you should be able to see a file called topSclassType1Sub.swf,
4. Right click the topSclassType1Sub.swf file and choose to overwrite it, then find the theme you want from the pack (i chose the green one) and double click the swf file to make that your new theme.