I was using NinjaRSS to send to twitterfeed to clients facebook wall. It all worked, but we had a flash in one of the post I didn’t want to show. Took forever to figure out how to remove.
Log into facebook account. Click on view page if your wall is not the current page. As you rollover each post a X will show in the top right corner of the post. Click on this and you will see all the options you have with each post.