My BB8320 is 3 days old and still trying to work out all its features. I encountered the above problem yesterday (while trying to upload new themes) but finally solved it after reading alot of useful posts here. Anyway here's what I did
1.Installed BB Desktop Manager from CD (inside package)
2.Googled "Blackberry Device Software for (your service provider)"
3.Download Device Software which matches your unit
4. Install Device Software
5. Open BB Desktop Manager. Check Help. Look under Device Software
6. Make sure your Device version is listed
7. Now do the Application Loader. Add. Find your new theme
8. Now on your BB, check options, theme, you should see your new Theme
...enjoy!
ArielC
