I have been reading all the comments and suggestions about adding the speadsheet box for comments.  Do you need to add this everytime you make a post?  I have a page( miniblog or announcements template) where I would like vistors to comment on whatever  post but I haven't figured out if i have to add the spreadsheet fix to every post.  It's funny because google sites has the comment box for collaborators already but it's not useable for general public comments if your site is open to everyone.  Frustrating, my google site is perfect except for this.