I get the same error.  I can access the website form my browsers and I wrote
the web site and I know it does not have security, still I get an error. 

As a test I tried thiss atain this forum
<http://forum.httrack.com/readmsg> 

The popup message is this: 
---------------------------
WinHTTrack Website Copier
---------------------------
* * MIRROR ERROR! * *

HTTrack has detected that the current mirror is empty. If it was an update,
the previous mirror has been restored.

Reason: the first page(s) either could not be found, or a connection problem
occured.

=> Ensure that the website still exists, and/or check your proxy settings! <=


The log shows this: 


HTTrack3.43-2+htsswf+htsjava launched on Tue, 27 Jan 2009 16:18:56 at
<http://forum.httrack.com/readmsg> +*.png +*.gif +*.jpg +*.css +*.js
-ad.doubleclick.net/* -mime:application/foobar
(winhttrack -qwC2%Ps2u1%s%uN0%I0p3DaK0H0%kf2A25000%f#f -F "Mozilla/4.5
(compatible; HTTrack 3.0x; Windows 98)" -%F "<!-- Mirrored from %s%s by
HTTrack Website Copier/3.x [XR&CO'2008], %s -->" -%l "en, en, *"
<http://forum.httrack.com/readmsg> -O1 H:\Leech\httrack +*.png +*.gif +*.jpg
+*.css +*.js -ad.doubleclick.net/* -mime:application/foobar )
Information, Warnings and Errors reported for this mirror:
note: the hts-log.txt file, and hts-cache folder, may contain sensitive
information,
 such as username/password authentication for websites mirrored in this
project
 do not share these files/folders if you want these information to remain
private
16:18:57 Info:  Note: due to forum.httrack.com remote robots.txt rules, links
begining with these path will be forbidden: /newmsg, /search, /allmsg (see in
the options to disable this)
16:18:57 Error:  "Not Found" (404) at link forum.httrack.com/readmsg (from
primary/primary)
16:18:57 Info:  No data seems to have been transfered during this session! :
restoring previous one!





When I try this on my personal web site I get this from the log file: 


HTTrack3.43-2+htsswf+htsjava launched on Tue, 27 Jan 2009 16:20:21 at
<http://www.morinmoss.com/rwgreene> +*.png +*.gif +*.jpg +*.css +*.js
-ad.doubleclick.net/* -mime:application/foobar
(winhttrack -qir4%e0C2%Pns2u1%B%s%uN0%I0p7DaK0H0%kf2A25000%f#f -F "Mozilla/4.5
(compatible; HTTrack 3.0x; Windows 98)" -%F "<!-- Mirrored from %s%s by
HTTrack Website Copier/3.x [XR&CO'2007], %s -->" -%l "en, en, *"
<http://www.morinmoss.com/rwgreene> -O1 H:\Leech\Test +*.png +*.gif +*.jpg
+*.css +*.js -ad.doubleclick.net/* -mime:application/foobar )
Information, Warnings and Errors reported for this mirror:
note: the hts-log.txt file, and hts-cache folder, may contain sensitive
information,
 such as username/password authentication for websites mirrored in this
project
 do not share these files/folders if you want these information to remain
private
16:20:21 Error:  "Forbidden" (403) at link www.morinmoss.com/rwgreene (from
primary/primary)
16:20:21 Info:  No data seems to have been transfered during this session! :
restoring previous one!