Clearing contents of guest book

[iwcsharmony]

Is there anyway I can clear few messages from my guest book or I can get a fresh guest book

[Palmfu]

Extras => Guestbook => Manage entries.

You can see and manage your guestbook entries (via "Change/Comment"), change them, comment on them or delete them.
Furthermore, here you can publish (approve) new entries (if in the settings you have selected moderated).

Extras => Guestbook => Delete all entries.

Here you can delete all of your guestbook entries permanently at one time.
To do this, click the "Yes, I would like to delete all guestbook entries" link and your guestbook will be completely empty.