> download, but now i am a little woried, is it possible for 
> the webmaster of the homepage to see that i am grabbing his 
> page and do something to me (like they do with hackers).

Well, yes, you would be detected just like you are when using your web
browser.  But it is not hacking, and as long as you set reasonable options in
HTTrack and do not hammer a particular website then the webmasters should not
mind and you should not be blocked/banned/etc.