The full text link is an embedded search but required a hack down deep in the jscript where the search result summaries were cut off at 200 characters. If you did an advance search and checked show post summary you would see it.
I found where I can adjust that to 10000 characters. Essentially the whole post.
So now if you click full text you see a 'today's posts" search with full text results. It still strips html and BBcode so images dont show. I think it has to stay that way for a reason.
But its there and it back in the nav bar and the hack has been migrated via ftp.