Heres a SIMPLE ANSWER for all of us geeks:
Edit your wp-includes\js\tinymce\tiny_mce_config.php file and add the word ‘anchor’ in the list on line 32.
This gives your admin TINYMCE an Anchor tag BUTTON.
Then: to create a link to your ANCHOR, click on the Hyperlink button and use the name you gave to your anchor!
BUT > you’ll need the whole URL for that page. i.e. http://www.mysite.com/?page_id=1#myanchor
The usual href=”#myanchor” does not work in 2.3.1
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