Ok thanks for the reply but it does not sound easy to understand the answer. Let me explain myself, step by step.
I have installed the plugin. But It does not appear on the left sidebar of wordpress panel (you can see the screenshot). As I see from the video which is about installing theme and plugins (https://www.youtube.com/watch?annotation_id=annotation_4208671599&feature=iv&src_vid=8Jxp1Ga6w6M&v=e1fLpukxW5s), I see that “rev slider” should appear on left. But it does not in my case. So, I though that old version of the plugin might be the reason for that. If not, how can I see the plugin properly when I install it? It seems it does not work right now.
Another question is about paying extra money for the plugin… I bought KLEO theme because you provide one package that sounds easy to use it. I have bought this theme just 2 days ago, and theme suggests that “sidebar revolution” is the must have plugin for the theme, isn’t it? When I install it through your documents that I downloaded from themeforest, it says it is not the latest version. I bought the theme just 2 days ago and now you tell me to buy the plugin. This is huge problem, if the plugin will not work until I update it.