Eventually I figured out a way to delete files from the hard drive. You want to press the Delete button. The promp asks you if you want to delete all files or a file/folder. You press - All files. The next menu shows all files in the folder selected. You want to uncheck the files you want to keep. And then press OK. Tyros deletes the files.
Thanks again for your help!
[This message has been edited by apchopper (edited 08-28-2006).]