I am trying to center this gallery and read another post online but I can't seem to figure it out.
Here is the link gallery.php
Try centering the gallery's containing div inside the 'content' div by adding 'margin:auto' (for width) to the 'pg-gl' class in common.css at about line 11:
margin:16px auto 0; /* Add this line */
padding:8px 0 8px 8px;
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.