Help! Missing Trans fluid during flush

It's been awhile since the last time I've been here, but I'm looking for all the help I can get on a trans problem on a trans common with the Taurus and the Windstar because there are great folks on here like Rod. If you would go to the thread I have a link to that would be greatly appreciated! :)
http://www.automotiveforums.com/vbulletin/showthread.php?t=1092129