If you have not made any changes to the site yet, I recommend re-downloading the shaper and re-installing it. Everything will look the same, but I have just updated the downloads with the latest Vertex Upgrade Patch
which includes a complete overhaul of the admin.
As for your questions:
There is only 1 post for Blogazine, all of the sample post content is in that single post.
I'm not sure what you're asking about the images. The demo images are not included in the shaper as they are only licensed to be displayed on the demo, you will have to provide your own images for your content.