How do I put downloads in my BlackBerry Pearl?

I want to synchronize my themes, etc. that I've downloaded. How do I do that?

I pulled this out of the BlackBerry 8100 (Pearl) user guide:

Themes

About themes

Depending on your wireless service provider, you might be able to set a theme on your BlackBerry® device that changes how items such
as applications, indicators, words, and icons appear. Themes might be preloaded on your device, or you might be able to download themes
that are in .cod file format.

Switch themes
1. In the device options, click Theme.
2. Click a theme.

Delete a theme
You can only delete themes that you have downloaded to your BlackBerry® device.
1. In the device options, click Theme.
2. Highlight a theme.
3. Press the Menu key.
4. Click Delete.

Download a theme
Verify that your wireless service provider supports this feature.
1. In the device options, click Theme.
2. Press the Menu key.
3. Click Download Themes.