Cover Page - Move Button, Add Image

I'd like to create a Homepage that is a split page with two images on either side of the page. I want the left side to have one of my wedding images with a clickable button (centre and two thirds down the photo) where clients can enter to wedding portion of my website. Then on the right I'd like a family photo with a button (centre and two thirds down the photo) where clients can enter the family, maternity etc portion of my website. So I have two questions:

How do I add an addition image to my page and;

How do I move my buttons to be over top of my image and two thirds down on each photo?

The cover page example I used is "Flash".

Thank you in advance!