> After having downloaded pages, they any not formatted 
like 
> the web-page. All information comes in one line after the 
> other, and not in the original tables.
> One example.
> What am I doing wrong??
I suspect the webserver to have sent text/text data, with 
a .html extension (or maybe a .asp or .php, with MIME Types 
enabled)

Go to options/MIME types and erase the default MIME types 
(which is something like asp,php,.. <-> text/html) ; and 
then recrawl (continue an interrupted mirror) the site - 
this should do tthe trick