Hi all, after more investigation, it appears that my hack has coincided with running out of space on the database which could be causing the INSERT problem?
My hosting allows 150mb database and from within the DB itself it says the size is 149.3 MiB
So, assuming the access denied issue above is due to the DB being full, can anyone explain how I clear out the old post revisions etc to free up space. The issue being, with no admin rights, I can't install a plugin to do it so must do it at database level...and I'm not an database expert :(