[kh99]

OK - there are no hooks in the rss poster code, but you might be able to use threadfpdata_postsave. That gets called every time a thread is created so you have to check something to make sure it's one of your wordpress threads. I think the feed url might be available using something like:

global $feed;

if (is_array($feed) AND strncmp($feed['url'], 'something', len) == 0)
{
   // add your link 
}