Hello Jianbo,
Yes, this example is designed for users to create a new flash programing algorithm, which is not provided in CodeWarrior. Please import this project in CodeWarrior IDE from File->Import->General->Existing projects into Workspace, edit the the project for your target, and build the project to generate an elf file.
Please refer to C:\Freescale\CW_PA_v10.5.0\PA\PA_Tools\FlashToolKit\Documentation\AppNote-FlashProgrammer-PowerArchitecture.pdf for details, regarding how to add new flash algorithm in CodeWarrior.
Probably you could configure you target as IFC 8bit NAND mode and try to use MT29FxG08-IFC.elf first.
Thanks,
Yiping