The following links provide useful background information for this microcontroller and using this controller board.
Data Sheets
PIC18F458 Data Sheet: Microchip - PIC18F458 Data Sheet
PIC18F458 Instruction Set: Microchip PIC - Instruction Set
PIC18F458 Application Notes: PIC18F458 - Application Notes
DS1307 Real Time Clock Data Sheet: Dallas Semiconductor - DS1307 Data Sheet
Books
Programming: Programming and Customizing the PIC Microcontroller
Useful Websites
Microchip: To Microchip website
Circuit Cellar Magazine: To Circuit Cellar Website
User Tips
If you have some useful tips or relevant information that would be helpful to other users, please send it to technical@futurlec.com