Hi Traf,
I see that you aren't decided on which template to use!

As already answered for WB2, wt_data_inc.php and wt_month_inc.php could be put
anywhere in your Pc, as you have a "browse" button to reach them! These files have
to be processed by Cumulus and sent on your website.
All other files and folders have to be uploaded to your website.
Error that you have with wt_data_inc.php file is because the file has been
uploaded to the wrong place, or not at all... then revise Remote Filename path
as indicated in the detailed instructions.
... and you know, it's normal that you have some problems with them as they
are php templates, then "intermediate" level ...be patient and read carefully!
Regards,
Jacques