There are a few issues here.
1) we don't provide XML data with IQFeed. XML is too bulky to use for streaming data.
2) We do have an XML snapshot service called FinWin (www.finwin.com) which will allow you to request data to chart, but it isn't real time and isn't streaming.
3) Putting Real Time data on a website would cost many thousands of dollars per month in exchange fees.
4) An IQFeed subscription provides no redistribution rights. Thus, you cannot use IQFeed to post data to a website. We sell re-distributable feeds but they aren't $50/month
I would suggest taking a look at FinWin then contacting Prosales@dtn.com for pricing information.
Jay Froscheiser
DTN Market Access, LLC.