Hi,
Under the PICC compiler directory you will find an example folder. There you will find lots of examples in C on how to connect or use the PIC MCU.
Also, you will find a pdf under the manual directory with a full explanation.
In the web site that was posted before, have a look at the FAQ, there you will find also alot of examples on how to connect and what featres you can use.
And the last thing to do is to search this forum, there are many examples and links for learning the PIC MCU.
If you found my answer useful, click on the button that says Helped me. ( NO points will be taken from you! )
Good luck.