Re: Newbie needing THEMES help! =)
FB if you have a data plan on your phone, you can download a lot of themes "OTA" (over the air)
All that means is going to a website with your BB Browser, and downloading it directly to your phone.
If you don't, then yeah, using desktop manager and app loader is the way to go with your USB cable.
Download the theme's .alx file to your computer. I usually just download it to the desktop so I can see it. Connect your phone to your PC and run App Loader. When you get to the screen with the list of applications, click "add" and then browse over to your desktop (or whereever you saved the .alx file) and click on the file. Click OK and then proceed through the rest of the app loader's instructions and you're all set.
Sometimes after you downloading a theme you need to do a battery pull before the phone sees it. So go to Options-->Themes and if its not listed in there, do a battery pull and you should be all set.
If I knew where I was going, I might already be there. -- Cross Canadian Ragweed.