Hi Craig, thanks for your quick response. I was back on the phone with Bluehost early this morning and we tried an upgrade to PHP 5.6 which solved the problem. I’ve since launched another episode and everything seems to be ok.
Before this fix, wordpress still worked fine but the post type ‘podcast’ created by SSP was just gone, not available in the dashboard or through links on the site.
All’s well now, thanks again.