Fatal Error after upgrading extension

[streetstrider]

Hi all, I'm hoping someone may be able to assist me.  I just updated an extension and now I get the following error when going to my site:

Fatal error: Class Varien_Db_Adapter_Pdo_Mysql contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Varien_Db_Adapter_Interface::insertIgnore, Varien_Db_Adapter_Interface::changeTableAutoIncrement) in/var/www/html/magento/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3864

Please assist if you are able.  

Thank you.

[streetstrider]

If I change "Class Varien_Db_Adapter_Pdo_Mysql" to "abstract Class Varien_Db_Adapter_Pdo_Mysql" i then get....

"Fatal error: Cannot instantiate abstract class Magento_Db_Adapter_Pdo_Mysql in /var/www/html/magento/app/code/core/Mage/Core/Model/Resource.php on line 165"