Hi!
ah, I just checked. The plugin does indeed use xmlns:news and so a "news:..." XML schema is valid; a change to "n:" is not really required.
However the other very important thing is to create a new map, different from the usual sitemap.
I can't easily spot the difference in the code, can you tell me what sturcture is different?
About the limit of 1000 news: Many people use the sitemap not only as a news item list, but as a full newslist. So hard-coded limiting the entries inside the plugin would make things worse for such people, and I believe the limit of google news is only potential, and not enforced...
Regards,
GArvin