Ok, now I would try this command line:

httrack --disable-security-limits --mirror www.hp.kairaven.de -c1000  -%c1000
-A10000000 -%k -R9 -T20 -D -%B -s0 -l% "en" -%R -b0 -j0 -n -u2 -F"Mozilla/5.0
(Windows NT 6.1; rv:17.0) Gecko/20100101 Firefox/14.0" --display  --path
/home/...

Is the syntax for the user agent correct?
---

When i tried to download the site the time before hts-log.txt said the
following:

(httrack -w www.hp.kairaven.de +*.gif +*.jpg +*.jpeg +*.png +*.tif +*.gif
+*.bmp +*.svg +*.swf +*.jng +*.mpg +*.mpeg +*.avi +*.mp4 -c10 -%c10 -A10000000
-%k -R2 -D -%B -s0 "-FMozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20100101
Firefox/17.0" -b0 -j0 -n -u2 -%v -O /home/...)

Error massages:
02:37:12	Error: 	"Forbidden" (403) at link www.hp.kairaven.de/bilder/rabe5.jpg
(from www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link www.hp.kairaven.de/bilder/rabe4.jpg
(from www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link www.hp.kairaven.de/bilder/rabe2.jpg
(from www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link
www.hp.kairaven.de/bilder/rabenkraehe.jpg (from
www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link www.hp.kairaven.de/bilder/rabe3.jpg
(from www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link www.hp.kairaven.de/bilder/rabe6.jpg
(from www.hp.kairaven.de/misc/raven.html)
02:37:12	Error: 	"Forbidden" (403) at link
www.hp.kairaven.de/bilder/ii1logo.png (from
www.hp.kairaven.de/misc/individual-i.html)

...(and so on)