brilliant, thanks. I tried an earlier version as you suggest and it seems to load without apache throwing an error. And it now appears in the Special:Version page.
I can't seem to edit pages - I think this is because I need Parsoid (see my next post - i'm having problems here to!). If I click edit, I get a progress bar which gets stuck and an error. "Error loading data from server: Curl error 7"
New page - but it doesn't seem to appear when creating a new page either!... starting to feel really thick.