Peter, have been trying to find you by posting a new question but maybe it was stupidly worded.
I followed your advice and moved the pages I had created in Pages 5 to Pages 09.First trached Pages 5 but hen could not open anything so put it back. All is working well.
Minor irriitant; the icon on my list of recently opened shows the Pages 5 logo.
Pages 5 app is in my list of apps but its icon is removed from the dock and i have only the old 09 icon.
Therefore I do have Pages 5 on my system but it is not in use but waits until Apple gets its act together and releases a decent Pages.
Only problem is that I got daily reminders to update. I shut off automatic check for updates for a few days but put it back again because i might miss an OSX update that is important.
BTW I can only sign in on Safari. FF seems to have come under Apple curse!