I am trying to archive a Zope CMS web site that has text/html MIME type files
with no extensions.  The first time I archive the site many of the HTML files,
and the links to them, are renamed with .txt extensions.  If I run the archive
routine again, they are correctly renamed to .html.

Am I correct in assuming that HTTrack should rename my text/html MIME type
files with no extensions with .HTML extensions?  This is the behaviour I want. 
Can anyone suggest what I may be doing wrong?
I am running HTTrack3.33-2-noV6-nossl on solaris-2.9-sparc with sunos5

My script is:

/usr/local/bin/httrack username:password@www.bbk.ac.uk/sitename/
-qwr5C2%Ps0u1%s%uN0%I0p3DaK0H0%kf2A25000%f#f -F "Mozilla/4.5" -%F "<!--
Mirrored from %s%s by HTTrack Website Copier/3.x [XR&CO'2005], %s -->" -%l
"en, en, *" username:password@www.bbk.ac.uk/sitename/ -O
"/var/tmp/httrack/sitename/,/var/tmp/httrack/sitename/" +*.png +*.gif +*.jpg
+*.css +*.js -%A php3,php,php2,asp,jsp,pl,cfm,nsf=text/html

I have tried using -N "%h%p/%n%q.%t" with the same result.  I have also tried 
-%N0 but the script failed.

Any help or advice would be appreciated.  Thanks.