Both links work fine for me in Windows using Winzip.
http://www.coldbox.org/download/coldbox
http://www.coldbox.org/download/coldbox/standalone/true
Can you confirm those are the links you are using?
Thanks!
~Brad
ColdBox Platform Evangelist
Ortus Solutions, Corp
E-mail: brad@coldbox.org
ColdBox Platform: http://www.coldbox.org
Blog: http://www.codersrevolution.com