It appears they don't want to talk about it because it has been thoroughly debunked. Here is a typical quote:
"For many years claims were made by strict, "young-earth" creationists that human footprints or "giant man tracks" occur alongside fossilized dinosaur tracks in the limestone beds of the Paluxy River, near Glen Rose Texas. If true, such a finding would dramatically contradict the conventional geologic timetable, which holds that humans did not appear on earth until over 60 million years after the dinosaurs became extinct. However, the "man track" claims have not stood up to close scientific scrutiny, and in recent years have been abandoned even by most creationists. The supposed human tracks have involved a variety of phenomena, including forms of elongate, metatarsal dinosaur tracks, erosional features, indistinct markings of uncertain origin, and a smaller number of doctored and carved specimens (most of the latter occurring on loose blocks of rock). A few individuals continue to promote the Paluxy "man tracks" or alleged human tracks in pre-Tertiary rocks from other localities, but such claims are not considered credible by either mainstream scientists or major creationist groups. When examined thoroughly and carefully, the Paluxy tracks not only provide no positive evidence for strict creationism, but are found to be among many other lines of geologic evidence which indicate a long and complex earth history." Glen J. Kuban, http://paleo.cc/paluxy/paluxy.htm
If you follow the link, you will find this discussed in great detail.