Hi,
Your GLCD module using two KS0108 driver chips. The pinouts from the modules are actually pinouts from the driver chips itself.
Here is a link which I found for your module.
http://www.projet.de/seiten_ebay/seiten_ebay_modlcd/AG-128×64.pdf
The data is not at all sufficient for a programmer. Your better search for datasheet of GLCD using the same kind of driver chip setup, and I’m sure the operation will be more or less same.