Put the script file in one of your script directories (e.g. D:/Document and Settings/I-Iybrid's Documents/Maya/Scripts). Then put the .lights file in another directory, anyone you want aslong as it doesn't have any spaces in the name. Now you need to open the script file in notepad and change line 57 to point to your .lights file. Save. Open maya and type GI_Joe; in the command line.