Hello.
Thanks so much for checking this and getting back to me.
I had already tried changing the /inc/config.base.php 1.4.2 and no joy. I can see in 1.4.3 paths have been altered (server path etc) and that is making sense to my frazzled brain..
That may work but I can't risk any problems with the beta version just now. (such a massive upgrade, I have taken too long already) I imagine it'd be messy to just upload 1.4.3 ajaxmanager as it talks to lots of other changes. So I think i will live with it...admin can still upload via the method you suggest and clicking on pagination at least. Thanks again !
PS>>> I think the block is something to do with getXSRFToken which is in the address on image browser frame load, then when pagination or search kicks in the token disappears. I am going to live with this but that might help someone else troubleshoot..