advanced search alignment

My advanced search area's alignment is odd. Some of the boxes are on the right and some are on the left, as you can see here. How can I fix this so that it's all aligned to one side or so that the boxes are "stacked" properly on one-another, instead of being placed haphazardly away from each other. I would imagine it has something to do with the width of each box but I don't know where to edit this. I really appreciate any help.

Okay, so I found where in the style sheet I can edit the width of the advanced search containers but that didn't fix the issue. They were less wide but still not "stacked" with proper alignment. So, I still need help sorting this out. Thanks.

You can add float:left; to FIELDSET. If that messes up other pages using that rule, you can add this to the stylesheet:

#advSearchDefault fieldset {float:left; margin:.2em;}

That fixed my problem! Thanks so much, Stevesh. I really appreciate the help. :)