I've installed the Google Checkout mod... but when I try a test purchase I get this at the checkout page:

Error: Shipping Methods not configured
rm1stlargeletter (ignored)
rm1stlargelettersf (ignored)
rm1stpacket (ignored)
rm1stpacketsf (ignored)
rmamsmallpacket (ignored)
specialdelivery (ignored)
why is that... shouldn't it pick up the royalmail shipping mod??