Shipping won't show on checkout page

[steinson]

I'm running Joomla 1.5.26 with VM 2.0.16
I've tried to set up flat rate shipping with PayPal for $5/shirt, and the shipping never shows the price on the checkout page. I've tried a number of suggestions from here with no luck: http://forum.virtuemart.net/index.php?board=131.0

I've tried this plugin with various configurations with no luck: http://www.kaizenmediaworks.com/pro-ship-virtuemart-2-0-shipping-plugin-module

My website is http://www.avoidfalls.com and for now, I've just added the shipping price into the price of the shirt. Please help.