Purchase Orders Version 6.0 help

Hi I just purchased the Purchase Orders Version 6.0, and i have everything working. However now im trying to get the cron job working, and i set it up in my host for

wget 'http://thesupplementbeast.dreamhosters.com/send_pos_cron.php?code=mycode' > /dev/null 2>&1

I am using dreamhost if that helps. i am having two problems, one they are not sending. and my second problem is that now all my po's are gone out of "POs - Send/Resend" is this normal? or did i mess something up?

also i am running Zen cart Version 1.3.9h, and the Purchase order version is 6

Generally, commercial mods aren't supported here, the idea being that the mod's author accepted your money, so they should provide support. Also, they know a lot more about how the mod works than we do.