Flash CS5 not reading HTML-formatted external .txt file correctly

In a nutshell: heading text is not showing up bold as it should. Why??

Help, I’ve worked with external HTML text a lot in CS3, CS4. I’ve got a CS4 project file that deals with dynamic .txt files that have HTML, when I open it in CS5 (now the only Flash I have) it will not process this HTML text correctly. It shows up blank. Unless I embed the text. But even when I do that the HTML bold text <strong> does not show up bold.
I’ve been monkeying around with this for a while, trying all sorts of things, have tried to find solutions online with no luck so far. Help! Zip attached for any curious, generous soul to look into. I’m new to CS5, this .fla is saved from CS5 in CS4 format