Ok. One more thing. After the installation, I can go into the store ok but not the admin part. It complained that gzpost doesn't have a default value. I went into the database, in the 'admin-activity-log' table. Found gzpost and changed its value to 'null'. Not the default null but checking the null (from phpMyAdmin). Not familiar enough with mysql to tell what the difference is. But it worked for me. I can get into the admin section now.