I am trying to make a Revpage but i am stuck in last step "Fill with related content" help me out..?

Select some relevant content that are already published in apsesne

Its not mandatory to "Fill the related contents.........." It may contain the contact details of your competitor. You can simply click on save at the bottom of the page.

I wish that I could help but I am only a Panda. ;--)

Select some relevant content that are already published in apsesne

This will populate you RevPage with related content and links to other web pages. For example you may want to include a YouTube Video plus links to other related content...

Just pick a couple of the options that relate to your content in your rev page. I usually click on one or two that are relative to my keywords.