> I am trying to mirror a site that uses several different
> host names for itself on different pages. Is there any way
> to make Httrack treat a list of aliases as one site, and
> stop it making several copies of the same site.??
Humm, this is on the TODO list, but I could not yet find 
the time to implement it

> On a related subject: in trying to prevent the multiple
> copies above, but get some of the missing pages that are
> only referenced by an alias, I added '+hostx/path/a*.htm' 
to
> the scan rules and set external mirror depth=0. 
> Httrack copied the whole hostx site, including files not
> matching 'a*.htm'. Is this the intended behaviour or am I 
> misusing the scan rules ?
Remember that scan rules are treated after other 
heuristics, like same-level tests. If you want to precisely 
control the scope, use first -*, as in:
-* +www.foo.com/* +*.gif

Note that as the depth option is prioritary, you shouldn't 
set it when using such filters.