Build a Website

I have a self hosted WordPress photography website. I have a Chocolate theme but cannot figure out what the problems are with the homepage. I need the homepage fixed and someone to explain what the problem is/was so I can go forward in the future. I also am not completely happy with the way the blog is set up within the template and would like to see if there is a way to change the structure of the blog. In addition, whenever I load images to the blog, lines appear on my images and I cannot figure out how to make them go away. I need help with these three problems. Help with all three is needed. Your proposal should include knowledge of how to fix all THREE problems as soon as possible.