> I use WinHttrack to grab it at first and it 
> works fine, then I try to use httrack to do the some 
> grabbing job , it works again but it fails to solve the 
> variables and the grabbed web page is lack of some 
> information.

Humm, did you use a recent (3.33) release to acheive that ? 
Any errors in hts-log.txt ?