e-Sword comes with a SermonAudio.com plugin that won't work by default in Crossover. In order to enable this tool in your installed copy of e-Sword, you'll first need to close e-Sword if it's already running. Then, go to
THIS WEBSITE and click "Download Now" to download the installer for "Windows Media Player 9 (NT)". This file will be called "wmp9nt.exe".
When you've downloaded "wmp9nt.exe", go to Crossover's "Install Software" menu. You'll find this as item #1 on the Crossover welcome screen, or also under the "Configure" menu:
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Look to the "Community Supported Applications" section, and select "Microsoft Media Player Sound Engine 9"
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Your "wmp9nt.exe" install file should be automatically detected when you do this. Next, click on "Will install into a new winXP bottle 'Microsoft Media Player Sound Engine 9'", and select your pre-existing e-Sword bottle:
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After making sure that you have selected your e-Sword bottle, click "install". The install process should be quite brief. When it's complete, click "done" on the Install Software menu, and then launch e-Sword and head to Tools>SermonAudio.com. You should find that the SermonAudio window pops up and you can play the sermons: