Hi Sascha
TBH theres so much wrong with that site I'm struggling to see a way forward other than redirecting old pages onto a new site with a 301
The design!, well its frontpage isnt it

the
seo, there isn't any! which starts at the core of the site from the page structure, no titles, poor descriptions, no headings, java navigation & to make that even worse no site map. The site also has a link to a sub site thats a mirror -
I think its pretty pointless addressing the direction and monetisation of the site as everything needs a complete overhaul and I think shes needs to be considering what shes going to do with the content and then direction of the "sites"
If ever someone needs to spend time doing some research and reading the forums its her and this is something you can't just pass on