Typoscript from extensions is gone

[typo27]

Thanks void,
the problem is not ve_guestbook itself, the problem is ext_typoscript_setup.txt files are not included. In typo3 doc api is written that every loaded extension ext_typoscript_setup.txt is included in page template. The question is - how come they are not included.

Regarding ve_guestbook, warning appears because of not included TS in ext_typoscript_setup.txt:

plugin.tx_veguestbook_pi1 {
userFunc = tx_veguestbook_pi1->main
templateFile = {$plugin.tx_veguestbook_pi1.file.templateFile}
teasercut = 50
wordcut = 100
sortingField = crdate
sortingDirection = desc
limit = 5
email_from_name =
email_from_mail =
......