Any board that uses the Atmega328/168 will use the ks0108_Arduino.h file by default.
Uno, nano, mini, Lilypad, Duemilanove
Unless you modified the config file glcd_Config.h to use the manual config file,
the default pin configuration file when using a nano board should be ks0108_Arduino.h
There is a wealth of documentation included with the library
(The included HTML documentation is the most complete and thorough)
There is also lots of information on the ks0108 playground page:
99.9% of the time, issues with the display not working are related to incorrect
Are you sure that the datasheet you used to identify your glcd module pin locations matches
the glcd module you have?