Q&A is clashing with my theme and creating crusty pages - In need of a solution

Hello,
Q & A is clashing with my theme and showing pages that have the texture of the background in them. I can't figure out how to get it to adopt the background. I've copied the /default-theme/ files into the theme's directory but I'm not sure how to get it to incorporate the styles the present theme is using.

This is my theme: Wunder http://themeforest.net/item/wunder-multi-purpose-wordpress-theme/3853901

Sincerely,
Isaac M. Dodd