This page is a basically what the name says: a list of tips that you can use to play better FIFA. It is the small things such as remembering to only use the sprint button when you have space to run into that make the big differences in competitive matches both online and offline. Read more here.
There is more than one way to play online. The four online game modes in FIFA 09 are Interactive Leagues, Online Leagues, Be a Pro: Online Team Play, Clubs, and regular online 1v1 games. All of those game modes are very fun and entertaining, so I reccomend you at least know about them. This tutorial will also include tips and strategies. Read more here.
This tutorial answers many questions about Ranking like why you aren't ranked or what affects your online points reward after every match. Many people don't even know how to check their rank, but lucky for you, this article also goes over that. Read more here.