I'm an idiot.
You should just add the code you placed above at the top of inc_header.asp
You're not meant to write it out like normal html. Something like this;
<%
Response.CacheControl = "no-cache"
Response.AddHeader "Pragma", "no-cache"
Response.Expires = -1
'#################################################################################
'## Snitz Forums 2000 v3.4.05
'#################################################################################
'## Copyright (C) 2000-05 Michael Anderson, Pierre Gorissen,
'## Huw Reddick and Richard Kinser
Topic Locked
Posted - 10 January 2006 : 14:43:02
