slider theme help

Hello all,
Can anyone help me. I am trying to change around the css so that my page http://www.lornascakes.co.uk/gallery/main.php has got some contact information on the gallery page at all times either to the right or the left of the main image in the middle.

Is the CSS at /themes/slider/theme.css where i should be approaching this from?
sorry for asking such a noob question
Regards

Dave