sheing3003, yes on Nigel's signature, go there, start there, do the projects, then re-think what you want to start with.
I did not look at the sensor your picked, but you are going to attempt to scan a letter on a page with it, (black and white I hope) and pack the 1's and 0's into bytes in RAM (hope there is enough RAM on the PIC) and then send it to a PC via RS232, and unpack it and make a jpg/gif and call a viewer? If you are running DOS and a VGA card, this might be easier..
For real, go read Nigel's tutorials.. This project is too big to start with.