Slider

Hello,

I like this Jolene theme, however I am having some difficulties.

First, I would like to add an image behind the content page/ browser side.

I am having a hard time using the slider feature. I am wondering what size of jpg I need to have and if the slider can be use as a gallery. I would like to place several images in the slider.

Also do you have a tutorial video on how to use this theme.

Thanks for your previous assistance.

Supk