As far as I can see (there was no option) it's german only. But if you have been working (like me) with a professional/enterprise version you don't really want to switch to the PE. It's not the missing components, but they removed the CodeExplorer and the possibility to jump between/directly to the declarations (CTRL+...). Missing those two features really hurts the workflow, so I think I'll stay with my D7 Enterprise. The only positive things about the PE are that it starts rather fast and that it does not need much memory when running.

And as for patches :
I looked into the installation directory and it seems that this version already comes with the service pack 1 preinstalled. SP 2 only seems (at least Borland's description tells it) for the ither version (architect, etc.)