I will echo that http://www.safaribooksonline.com/ as well as dissecting other PHP scripts. Focus on learning PHP OOP code and not just...
Check line 61. Is the path correct? And as stated by ActiveFrost, are the files present?
In case you have not looked yet, weebly.com is very popular with some of my friends.
Just to add a little to some of the thoughts in this thread: learn PHP 5 including the use of OOP and not just procedural. Next, start dissecting...
Separate names with a comma.