Assuming the site uses PHP/MySQL for the stuff, it would be easy enough to let someone know the basic layout of the database (Basicly the title/content colum names), then someone could put together the code, send it to you and you could put in user/pass/database/table name and upload it.
The code's easy enough to do, just write the title and news item to the XML in the right format, and repeat that for the past x news items. The script that does this is run everytime the news is added, say
Or, not sure if the server works with it, but you can sometimes put PHP in an .xml file, and basicly write the RSS, with some PHP in the right places. Much simpler
Would be nice to have, and it's only an extra script and one file, doesn't really change anything (Apart from linking it somewhere, but thats it)
- Ben