Maybe it's your PC or connection. It works for me...

HTTrack3.41-2+htsswf+htsjava launched on Mon, 23 Jul 2007 11:14:03 at
<http://www.facstaff.bucknell.edu/mastascu/eControlHTML/CourseIndex.html> +*.png
+*.gif +*.jpg +*.css +*.js -ad.doubleclick.net/* -mime:application/foobar
(winhttrack -WC2%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'2007], %s -->" -%l "en, en, *"
<http://www.facstaff.bucknell.edu/mastascu/eControlHTML/CourseIndex.html> -O1
J:\UnixUtils\test\ControlTheory +*.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
11:15:06 Info:  Exit requested by shell or user
11:15:06 Error:  "" (0) at link
www.facstaff.bucknell.edu/mastascu/eControlHTML/SysDyn/SysDyn2.html (from
www.facstaff.bucknell.edu/mastascu/eControlHTML/TOC_BasicConcepts.html)
11:15:06 Info:  Exit requested by shell or user
HTTrack Website Copier/3.41-2 mirror complete in 1 minutes 3 seconds : 57
links scanned, 55 files written (663096 bytes overall) [740567 bytes received
at 11755 bytes/sec]
(1 errors, 0 warnings, 2 messages)
* * MIRROR ABORTED! * *
The current temporary cache is required for any update operation and only
contains data downloaded during the present aborted session.
The former cache might contain more complete information; if you do not want
to lose that information, you have to restore it and delete the current
cache.
This can easily be done here by erasing the hts-cache/new.* files]