> It is possible to use HTTrack to fetch ONLY the URLS 
(whith
> the arguments if are php pages) of a web recursivly and 
save
> all in a file?
This is the (still experimental) --mime-html feature

Just try to add
--mime-html
in the scan rules section (Set Options / Scan rules)

This will generate an index.mht file (RFC/MIME compatible 
file)