when you download an apps on yr desktop how can you install that software to your phone. should i run it on the desktop and then install it to the phone

If you download it to the desktop, you'll need to use the Application Loader in the Desktop Manager to load it.

Wirelessly posted (Verizon 8830)

In addition, you may need to unzip the file first and place in regular folder before using the DM. Sometimes the App loader doesn't see the zipped files.

Thats why I prefer downloading OTA.