Is the DayTimer free to download or is there a fee involved?
The software is free, but it's not available for downloading because it comes bundled with the Sharp products.
I recommend using the Sharp Support page to identify your device, then check the downloads section for your product.
Support page: http://www.sharpusa.com/CustomerSupport/ProductDownloads.aspx
Call Sharp: 1.800.BE.SHARP (1.800.2374277)