> The default in options -> Expert -> Rewrite link =
> relative for internal/absolute for external

Yes, I have it set this way

> Try updating the mirror, it's possible the main page
wasn't rewritten properly. 

I did several times, but the result is always the same. Do you think that
winhttrack can have problems with dynamic sites? How does it work? Will it
change the parameters in the URL by replacing them with a local path to an
html file? Where can I find info on this?
> There is also build -> No external/no error pages to
> prevent a external link from going directly to the
> net. This allows you to see the url of the external
> page vs url of the mirror to diagnose the reason.

In build I have just one "Local Structure Type" option and this is set to
"Site Structure" (the default option). Is this ok?
Thanks for your help

Stefano