http://yetanotherforum.net/ , as the site appears to be built using that solution." So...has anyone tried doing this or actually got it to work? Thanks.

http://forum.yetanotherforum.net/yaf_rsstopic.aspx?pg=4&ft=0&f=11 

Works perfectly. Just go to the section you want to use and click the "Rss Feed" link... copy and paste the URL to twitterfeed.

And yes, YAF support auto-discovery RSS.

http://www.agilentxrdforum.com/yaf_rsstopic.aspx?pg=3&ft=0  and clicked the "test rss feed" button in TwitterFeed. It came back with the message: Your feed might be empty or missing publish dates or GUIDs. A feed needs to contain publish dates or GUIDs in order to work with twitterfeed.

I know it is not working because there have been recent posts to the forum that have not been captured in my Twitter account.

It can not work because by default guest can not see the rss feed, they are redirected to the no access page.

Go to host settings > Features > Syndication Settings and set the rssfeed you want to use to access "All Users".

Thanks tha_watcha. I'll definitely do that!