these are place holder variables that should be replaced by the choices you make when running the wizard.
For some reason the pages where not created properly.
Try deleting the checkout pages, then in Dreamweaver go to Window -> Workspace Layout -> Reset '<Your layout name>'
Next close Dreamweaver and delete the cache file from the users configuration folder:
common_installation_issues.pdf
Then reboot your computer and try recreating the checkout pages using the checkout wizard.