I believe that the problem is there. This module was coded for PHP5 and MYSQL 5, it will not work well on older versions of php and mysql.

I will look into it when I have time, but ZC is moving to php5 and mysql5 as well, so the best solution is to update your server. But beware tho, if you are running an olversion of ZC (1.2.x) you will have problems with php5 and mysql5