Greenguy's submit form doesn't seem slow to me; not compared to a number of other places, at least. Not as fast as some other places with stripped down scripts, but... I wouldn't call it slow.
You gettin similar problems at other places? What would cause the timeout? Page not loading quick enough for greenguy's bot to check your site? Or could it be something else?
Need someone with more tech-know-how in here... I just like to ask questions.