guar I spent around 10hours on the http://www.wphardcore.com/2010/5-tips-for-using-ajax-in-wordpress/
but with no luck.
If you are not an experienced wordpress that article is of no use, because it addresses experienced users.
The article does not mention explicitly all the files that are impacted nor does it have a full source code example.
I left a polite question to the author to add an full example, but my request was not even admited on that blog page…
I’ll try Mark’s advice and post back here.
Thanks