Hm, I just found, that the server still seems to have problems as now the domain is "not registered" but the alias one (
http://sc-core.de) works (atm). But well this should actually be fixed by tomorrow they told me.
I'll try the upgrade, but meanwhile another thing I found is, that with firefox/ie the page looks like shit:
large version
but looks normal in chrome!? (except for the missing pictures cozed by the missing main domain)
large version
Quite strange