we update same web page for client but after publish he see only old version.
so, reading on forum, we have use this script under META TAGS - USER DEFINED:
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
but nothing. we need that if we cahnge same page he see new page!!

thanks for your help
hope in your c&c
best regards