Here are a few tutorials that I recommend giving a read. Object Pascal is a different animal from Pascal. The main thing is the concept of Objects and structures in your code. Once you learn this though, you'll love 'em. It even makes some of your code much more powerful and easier to impliment stuff once done right. It just takes some time to get used to the concept of OOP.

Object Oriented Programming in Delphi - A Guide for Beginners
Essential Pascal

There is more material in the PGD Library, you are more than welcome to visit and read through everything. Some other languages are available for some items, but it's mostly in english though.