Jolleen O. looks like you are missing several classes that should have been applied to the collection. But also think you may want to use portfolio 6 if you are looking for a more staggered line up of work. If you are trying to have a side by side, then I would say one of the issues is the titles of some of the projects are taking up 3 or 4 lines.
But ultimately, I think its not working correctly because of the missing classes.
If you paste in a fresh copy of portfolio 5, you'll get a better idea of what I mean as well.