Well, I click on "Add URL" browse to the home page of that website. Change the
proxy address over to one shown in your software, type in username, password,
tick remember my password and login. What happens next is "Link captured into
HTTrack Website Copier, you can now restore your proxy preferences! Clic here
to go back". I am actually using Mozilla Firefox (one of latest versions). I
still unfortunately get the same error message "You are not authorized to view
this resource. You need to login". 

HTTrack3.46+htsswf+htsjava launched on Sun, 16 Sep 2012 18:45:36 at
<http://www.fracsoft.com/index.php?>postfile:C:\My%20Web%20Sites%207\FracSoft%203\hts-post0>
+*.png +*.gif +*.jpg +*.css +*.js -ad.doubleclick.net/*
-mime:application/foobar -*/logout*
(winhttrack -qwC2%Pns0u2%s%uN0%I05212%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'2010], %s -->" -%l "en, en, *"
<http://www.fracsoft.com/index.php?>postfile:C:\My%20Web%20Sites%207\FracSoft%203\hts-post0>
-O1 "C:\My Web Sites 7\FracSoft 3" +*.png +*.gif +*.jpg +*.css +*.js
-ad.doubleclick.net/* -mime:application/foobar -*/logout* )
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
18:45:36 Info:  engine: transfer-status: link added:
www.fracsoft.com/index.php -> C:/My Web Sites 7/FracSoft
3/www.fracsoft.com/index.html
18:45:37 Info:  engine: transfer-status: link added:
www.fracsoft.com/images/favicon.ico -> C:/My Web Sites 7/FracSoft
3/www.fracsoft.com/images/favicon.ico

18:46:28 Info:  engine: transfer-status: link added:
www.fracsoft.com/index.php?option=com_formsheet&Itemid=46 -> C:/My Web Sites
7/FracSoft 3/www.fracsoft.com/index3234.html

18:48:03 Info:  engine: transfer-status: link added:
www.fracsoft.com/index.php?option=com_content&task=view&id=14&Itemid=91 ->
C:/My Web Sites 7/FracSoft 3/www.fracsoft.com/index4f88.html
No files purged
HTTrack Website Copier/3.46 mirror complete in 2 minutes 27 seconds : 232
links scanned, 232 files written (5177878 bytes overall), 232 files updated
[3329067 bytes received at 22646 bytes/sec], 2707223 bytes transfered using
HTTP compression in 200 files, ratio 28%, 29.1 requests per connection
(No errors, 0 warnings, 232 messages)

Would there be any chance you can try running this for me if I were to send
you an email now with my user and password or what do you advise now? :S

Thanks

Ian