I noticed that Clockworkgeek_Guestcookies_Block_Onepage_Shipping extends Mage_Checkout_Block_Onepage_Billing, where I believe it should extend Mage_Checkout_Block_Onepage_Shipping. This was causing the shipping step to not be displayed in our onepage checkout. This was on a customized Enterprise Edition, which I don't think this module proposes to support, but it seems like this issue would apply to all versions. Updating the class to extend Mage_Checkout_Block_Onepage_Shipping fixed the issue for us.
I noticed that Clockworkgeek_Guestcookies_Block_Onepage_Shipping extends Mage_Checkout_Block_Onepage_Billing, where I believe it should extend Mage_Checkout_Block_Onepage_Shipping. This was causing the shipping step to not be displayed in our onepage checkout. This was on a customized Enterprise Edition, which I don't think this module proposes to support, but it seems like this issue would apply to all versions. Updating the class to extend Mage_Checkout_Block_Onepage_Shipping fixed the issue for us.