Robert you could check on [http://www.ifixit.com/Answers/View/59786/How+to+replace+a+Home+Buttom|this question] There are also a couple of [http://www.youtube.com/watch?v=Een7WQ8fMMM|videos] on youtube that will help you out. Then there are all the Step-by_step guides on ifixit that are extremely helpful for this. [[Device:iPhone 3GS#deviceGuides]] and the part is available on places [http://www.amazon.com/Iphone-Home-Button-Cable-Replacement/dp/B0042R07BE|like this.] I hope this will help you to fix your iPhone. Good Luck.