to be honest with you the "start0.sav" file i either comment out that section or just delete it because i never use game saves.
as with the .wdl make sure its listed like this:
path "C:\\Program Files\\GStudio#\\work"; //just keep adding\\ to get to your folder and the # represents either 6 or 7.
then type:
this should work, if not let me know.