> I have a website which looks like www.domain.com/shop.php?> download=1
> then i can download 1.zip
> ok now the catch how can I download 
> www.domain.com/shop.php?download=1
> www.domain.com/shop.php?download=2
> www.domain.com/shop.php?download=3
> ...

Use a list of URLs (one URL per line in a text file) using 
the "URL list" feature in httrack. But you'll have 
to "build" the list by yourself ; either with some bash-
style scripting, or using some excell things (I am really 
not a specialist, I imagine that this kind of thing is 
possible using a spreadsheet ?)