There no or little response to the questions/problems posted in the Gift Certificate section, so am posting my question here and hope the issue is solved. I read this http://www.magentocommerce.com/boards/viewthread/69122/ and not sure what changes to the lines.
2 problems with the Unirgy Gift Certificate:
1. The certificate is installed but does not show up on checkout page.
2. Error on selecting a generated gift certificate shows Fatal error: Access level to Unirgy_Giftcert_Block_Adminhtml_Cert_Edit_Tab_History::getRowUrl() must be public (as in class Mage_Adminhtml_Block_Widget_Grid) in /home/domain/public_html/app/code/community/Unirgy/Giftcert/Block/Adminhtml/Cert/Edit/Tab/History.php on line 24