I don't suppose you want to tackle the various problems with the Ticketmaster Event Engine? [Removed]
Seriously, I have tried multiple times to report problems, but nothing is ever fixed. I get the feeling that you have decided to let the HTML version die, as you have fixed nothing there (other than when it doesn't work at all). At this point, I have a hand coded iframe that looks like yours but isn't, because the HTML widget does not show partner concerts. I was once told that the reason was that those concerts were not in the feed, but that can't be true now because the Flash widget does show them.
Then there is the date format problem, showing the European format (day/month/year) for US concerts at the dot com site. This can be fixed by altering the generated code, but new users won't know that. If you are withdrawing the HTML format, then say so. I am one of those who won't use the Flash version because it has a Get Widget link, plus it is much slower. Also, I happen to think that it is not obvious how to scroll, or even that you can scroll, so I think that some people may see only the few concerts that are displayed initially.