trouble lining up page

Hi there, On my site RideitNz.com on page About Us, im having trouble lining up the pictures and the words. Ive managed to get the first two pictures and text correct but the other two wont follow suit. Can you please help me? Also on my home page i would like to put more information in, by using columns. I have my introduction paragraph which i like but underneath it would be nice to have 3 different columns side by side that i could fill with text and pictures, Is this possible?. Hope you can understand what im talking about Thanks loads guys