The client only had to then add a news article to their site and it would update their site, rss, Facebook and twitter accounts in one hit!
That site was on Joomla 1.5............ unfortunately the new site I a, building for our company is in Joomla 1.6 and was soooooooo disappointed to find out this isn't compatible.
The sooner you make a 1.6 version the better as I cannot emphasize enough how good and how useful this extension is.
Unfortunately there don't appear to be any other free 1.6 compatible extensions available that do this job. I'm stuck really... there's certainly a niche in the directory here!