PostgreSQL 8.3.3 is not supported by libqt4-sql-psq 4.4.0

- When executing a Qt application with PostgreSQL, database access doesn't work and we obtain this warning:
This version of PostgreSQL is not supported and may not work.

- We have Kubuntu 8.04 AMD64 with these repositories:
deb http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse

- Qt version:
4.4.0 (with 4.3 our application worked correctly)

- PostgreSQL module for Qt4:
libqt4-sql-psq 4.4.0-1ubuntu5

- Database version:
postgresql 8.3.3-0ubuntu0

- Code:
int main(int argc, char *argv[])
{
        QSqlDatabase base_de_datos = QSqlDatabase::addDatabase("QPSQL");

        base_de_datos.setHostName("localhost");
        base_de_datos.setDatabaseName("DatabaseName");
        base_de_datos.setUserName("UserName");
        base_de_datos.setPassword("password);

        if(base_de_datos.open())
                cout<<"ok"<<endl;
}