Image sizing off on rollover

I used your tool and am having two problems with style 1:

1) I uploaded two images that are exactly the same size. The rollover on the second image is significantly smaller on rollover. Why is this? And how do i fix it?

2) How do I remove the border on style 1?

Long story short, I just want a simple rollover that has one image on top, one image on rollover, and a simple fade. I want both images to be the same size.

The page I need help with: [log in to see the link]