Sportal Template with Joomgallery / Fix Margins

I am trying to figure out how to fix the margin problem I am having with the Sportal Template & Joomgallery.

I have enclosed a link below to the photo section of my site. I am trying to bring my images closer to eachother so that they fit into the template. I have tried to add more colums to bring them closer but then the images on the left side are pushed even further out off the screen.

I also would like to have the text under each image be centered with the image.

Here is the link to the site and thanks so much for any help.

www.partydogz.com/index.php?view=categor...omgallery&Itemid=100

Sorry for delay.

Edit template's CSS file template_css.css and add this:
This might help. If width of 20% is not good, try to edit it, or use it in pixels, in example, 150px.