I just attempted to make some pants for baby girl and I got so frustrated I had to walk away. After taking over an hour to cut out all the pieces (knit is really hard to cut!) I tried to follow the instructions to line up the edges to sew....but they don't line up! I thought maybe I cut them wrong, but the patterns don't line up either. Am I missing something?

These are the instructions im trying to follow....
http://www.sewmuchado.com/2014/05/free-footed-baby-pants-pattern.html