I tried to install webhttrack in ubuntu, but it doesn't work...

I tried in in two ways:
Method 1:
Add it in the ubuntu software center.
The installation gave no errors, and the program appeared in the menu, twice!
Both send me to computer:8081/server/index.html, which loaded normally, and
invited me to click the 'next'-button. That's where it went wrong: it sends me
to computer:8081/server/step2.html, which does not load. Also not if I choose
a language.

Method 2:
"sudo apt-get install webhttrack"
This also installs without error messages, and this time it only appears in
the menu once.
The rest is the same as above: the file step2.html never loads.

I hope this is enough information...