A strange thing happened on the way to the upgrade.
Well, as I said, I’ve upgraded to wordpress 2.0 . One of the first things I wanted to trial was the WYSIWYG editor with uploaded images.
I uploaded an image file (easy) and tried to insert it into a post - it failed! I was left with no image tag at all as soon as I pressed ‘save‘ or ‘save and continue editing‘. (I looked at the html generated). I was UNHAPPY!
I immediately blamed 2.0 of course! I also blamed the upgrade process just in case 
. I resigned myself to NOT using the wysiwyg editor 
. Later, I tried Podz trial site and confirmed that the editor didn’t work there either. So it must have been 2.0 at fault! Right? WRONG!
I happen to have a couple of systems hooked into the net (OK so I am a complete geek with a dedicated storage server and a home network etc etc ) . For some reason I accessed the editor from another machine - and….. the picture insertion worked!
I tried everything I could think of on the original machine. Deactivated spyware programs and software fire walls. Removed virus scanners etc etc. No joy! It had to be my browser - Firefox 1.5 . BUT the same browser worked on the other machine! I tried safe mode, deactivating my extensions/plugins for Firefox. No go. I uninstalled it, then reinstalled it - NO GO
Finally, I uninstalled Firefox, deleted everything related I could find on my windows XP box. This included some residual configuration options in the Documents and settings folder. I reinstalled 1.5 .
EUREKA! Now it works! I have NO idea what was there to effect image insertion. As far as I know, I upgraded the same way on both boxes, but the fact remains it was a problem, and it was NOT Wordpress 2.0 at fault.
So, just keep in mind - have a problem? It COULD be YOU at fault. I think we tend to forget that nowadays.
BTW -If you have ANY idea why it might have failed, PLEASE let me know. 