Tuzer ayhold First u wil add guestbook to your site
Click on add Block - Social - Guestbook
den upload my guestbook twig

http://viktuz.xtgem.com/Backup/xtguestbook.twig.js

into d folder a folder named _xtgem_templates
Afta uploading, rename it to xtguestbook.twig

That's it
ur coding partner VICE