> you didn't end up with errors like mine at all then? 
> hmm... i wonder what was going on when I was doing it.

Just had another look and appears the OSHA site is back up.  I pointing
HTTrack directly at

<http://www.osha.gov/pls/oshaweb/owaredirect.html?p_url=http://www.asse.org/ShopOnline/books/standards/3322.htm>

and the page captured successfully.  Sorry I can't be of any more help :/