help setting a guestbook.... please!!!!

[papaleguas]

Hello!
I´m attempting to make a guestbook to work but I failed!!!!
I have no idea how make it work?!
Can you help me????Please!!!!!!!!!
Here is the souce:

[butterbur]

It may be of use to let people know what lanquage you have coded in (php/perl/c++ etc.) and give a few more details over what error you are getting.