ok, that is not bbcode. that is plain html.
you have to first go into your admin panel and create a bbcode for this particular iframe code.
then you can use that bbcode in the post in that extension.
I think it would be like this:
<iframe width="400" noresize="noresize" scrolling="no" height="16" frameborder="0" src="https://widgets.tc2000.com/WidgetServer.ashx?id=201485"></iframe>
then, in the edit box for that extension just type in
[ticker][/ticker] where you want the widget to show up.
I can't test this because I get a 403 error on my server because it won't let me use an iframe in this way.
not sure why, I disabled mod security for my server and that didn't help.
anyway, try it on your board and see what happens.
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