> I managed to download the website, but how can i
> open the website with its menues and functions in my
> browser? 

At completion, there is the open mirror button.

Open the {BASEPATH}\index.html to get a list of all your mirrors (projects.)
If you don't remember what you set it to, start WinHttack. On the first page
(where you enter the Project name,) half way down is Base path.

Open {BASEPATH}\{PROJECTNAME}\index.html to get a list of all the starting
URLs in the project.

Both of the above will automatically forward if there is only one item.