Hi,
Open your cfg.txt file with notepad. It's in the same folder as the LFS.exe.
Find the line that sais Game Admin
It should be something like:
Game Admin mypassword
Now open the config.txt file in the ghostcar folder and find the line
adminPass=Pass
and replace the word pass with the word "mypassword" or whatever your password is.
With a few words you must have both admin passwords the same in the config files.