> I can't mirror the tiny <http://pantharia-akademie.de>
> website competly. If I add the URLs of the menu
> items separatelly, then works. Bat how can I mirror
> the whole site? 

Those menu items are not links. They are a type of form:
< tr class="menu_row_unselected"
onClick="document.location='index.php?page=ausbildung'">
< td width="17" class="menu_bullet_unselected">< img
src="images/bullet_unselected.png">< /td>

Httrack does not click on forms.
Did you try options -> Links -> Attempt to detect all