U-BOOT TFTP_program_flash image generation

Hi,

I was able to flash the prebuilt linux into my 3c120 dev board with no problem. I have also updated flash with my customize kernel and FPGA image..

In my TFTPBOOt directory which I have downloaded from the aletra wiki.. I have this two scripts "tftp_program_flash_script.img" which is called upon by the u-boot flash program.. In the same directory I have the "tftp_program_flash_script" with no .IMG. My question is what is the exact COMMAND use to generate the .img file. I would like to adjust some parameters in the script and then generate my own "tftp_program_flash_script.img".. I hope someone could give some light..

Lanz