Further to the above, as it’s just occurred to me:
Might this to do with the permalink structure? In the old blog, I had the structure as [date/post title]. Posts from December onward are [post title only]. When I moved to wp.org a few weeks ago, I chose the permalink structure of [post title only]. I don’t know why the posts in December differ from that blog’s earlier ones and match my new (wp.org) settings, but I wonder if this has something to do with why links for posts before December 2012 are no longer working?
If this is a possibility, how would I repair this?
[Forgot to click ‘Resolved’, and it seems I may have to do another post for that action to ‘take’, so here goes. Thanks again!!]
Dear WPyogi,
THANK YOU!!! You hit the nail on the head! I immediately followed your suggestion and bingo! Within moments it was paid for and the issue resolved! I really appreciate your kind attention.