[Excavator]

1. I can't get three columns to move up and be centered

#wrap still has margin and padding that move your columns down. Remove them to move #content up, like this -

#wrap {
    background: none repeat scroll 0 0 #FFFFFF;
   /* margin: 53px 0 0;
    padding: 400px 0 45px; */
    width: 100%;
}

2. I made the columns bigger, and now they don't line up on the sides of column 2

When you make columns 1 and 3 wider, you also need to adjust the margins on column 2 that make room for 1 and 3.
Like this -

#col2 {
	height: 400px;
	margin: 0 202px;	
}