Thanks! Problem solved :)

But perhaps you'd fix the the Guide by Cohen (in the 
other side, an exceptional work), because in the 
explanation of the %L option, it gives as example: 

httrack %L linkfile -O /tmp/shoesizes
httrack %L linkfile -O /tmp/shoesizes -B --update

although in the other parts of the document it goes 
with that "-"; but perhaps it would be better to unify 
it...

Thanks a lot, anyway! :)