It does look like you need to pass the parent page's query string through to the IFRAME like this:
<IFRAME Src="iframe.cfm?<cfoutput>#CGI.QUERY_STRING#</cfoutput>" width="525" height="299"></IFRAME> - Gyrus ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - [EMAIL PROTECTED] work: http://www.tengai.co.uk play: http://www.norlonto.net - PGP key available ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_talk FAQ: http://www.thenetprofits.co.uk/coldfusion/faq This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting.

