After several attempts at fixing the SmartFTP bug I have found a way to deal with it. The bug rears itself when multiple pages are uploaded to the server via SmartFTP. It misses random pages leaving dead links on your datafeeds. I found that using the free multi page sitemap generator found at http://mediacet.com/media/p/60.htm to be most effective. I load my pages and then run the generator; the generator stops at the missing pages so I can upload them with SmartFTP. Until SmartFTP fixes their bug this is the best way to go.