> httrack <http://wwwlx01/syndreports/wb/> -
O "/synd_files" "-
> *.html +wb-20041130830-200412010829-200412010830500.csv"

Use -* instead of -*.html, and 
+*wb-20041130830-200412010829-200412010830500.csv

Such as:

-*
+*wb-20041130830-200412010829-200412010830500.csv