If you are using cfhttp to recieve XML, RSS or any other document form a remote server, you may get a veriety of errors; connection failed, requested doument not found, and so on.
There are a number of parameters you can set which may help this issue.
Some sites require a valid user agent. i.e.(netscape, internet explorer, opera....)
by default the "userAgent" parameter is set to "Coldfusion". This may alert the site that it is a server request or spider and reject the request. Specifying a user agent will allow coldfusion to fool the site into believing the http request is coming from a browser and not coldfusion. I used: "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" but you could use any valid browser.
<cfhttp method="get" url="http://[address.of.document]" useragent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"></cfhttp> <cfset xmlDoc = cfhttp.FileContent> <cfoutput>#xmlDoc#</cfoutput> should display the document you requested