I need to fix an issue in my blogspot blog!

Hi there, I want a programmer who has sound knowledge and expertise in blogspot blogger. As I am having trouble in my blogspot blog. The problem is that homepage of my blog is only showing posts of this month. It is not showing posts of earlier months. I want it to show all my previous posts. If you have good XML knowledge and perform this task do let me know. Write 'BlogSpot Expert' at the start of your message to let me know that you read my all instructions. Thanks!