[Plugin: AutoNav Graphical Navigation and Gallery Plugin] centering title

Hi,

I’m trying to locate the subpages class. It does not appear to be in my theme’s style.css folder (I’m using the Graphine theme)

I just want to center the autonav thumbnail table within the post and also center the title under each thumbnail.

http://ww.wp.xz.cn/extend/plugins/autonav/