Installed demo and pretty much uneditable

Hey everyone. I’ve installed parallaxsome demo onto my site and I’ve been trying for days to get it to be editable. I can’t seem to figure out how to swap my photos for their placeholders. Also, the whole “first page” is completely blank other than my logo… Please help before I throw my computer, I’m begging!

The page I need help with: [log in to see the link]