Thanks again MagnusB: It's not as easy as that - I can put the Insertion point wherever I like, but as soon as I try to insert anything, a box appears saying:
"Read-only content cannot be changed. No modifications will be accepted".
The odd thing is that I edited this file earlier today! It is one of a group of files related to my Autobiography, which share a folder. Some are .docs, edited in Open Office and saved as .doc, some were originally .docs and have been saved as .odt. I have retained the .doc format in order to be able to work on them in my laptop, which has only Word97 and an older version of OO, which I will soon update. I am reluctant to leave Word for this until I have satisfactorily working links, in the TOC particularly. At present I have no Windows on my PC and am not particularly anxious to return to it generally. I like Linux Mint - I'm not so keen on Open Office Writer although it copes magnificently with several other MS Office parts.
This file in its File/Properties/General tab says it was created 27/09/2005 by me - that must have been in Word97. It was modified 6/11/2007 which was probably when it was converted to Open Office 2.1; under the Properties/Description tab I see Comments: Revised 19/8/06; copied from laptop 29/8/06.
Fortunately I have today's pre-edit version separately saved (I re-named it before I started because I was going to experiment with the TOC) so not much is lost - but I want to understand the system I'm working with!
Incidentally I have re-created the TOC in this and another document - in both, the page-numbers still don't work as links and this was a valuable feature of the Word TOC. I raised this point in another post a few days ago - somebody responded that they worked for them. Very odd. This is Open Office 2.4 in Elyssa, from which I was expecting great things.
Yours hopefully -
Using a PC with 2GB RAM, 3 hdds and a 1.7 GHz Celeron cpu.