First of all the ULR = http://oceanabyssaquatics.ca/store/How do I make the the left column the same height as the center and right column?

Second; as you can see the center column header (where the word "Home" is) does not have the same header as all the other colums...how do I make it so?

Third where would I add an image directly below the header in the head section (the same as http://oceanabyssaquatics.ca/redo/)