On your handheld, run the StyleTap Application Launcher by tapping the "StyleTap Launcher" icon in the Windows Programs folder. (Or, if StyleTap is already running, tap on the "S" icon in the toolbar at the bottom of the screen.)
In StyleTap Launcher, tap on the title bar to display the menu bar, then select "Tools" from the "Tools" menu.
You will see a list of the applications that you have installed to run with StyleTap. Tap on the one you want to delete, then tap on the "Delete" button at the bottom of the screen. After you confirm that you want to delete the application, it and all of its associated databases will be deleted immediately.