You can use html formatting on the original text, import that, and then set your dynamic textfield to use htmlText. The formatting should come through with the text. For more info on this look at the online help section on htmlText.
hmmmz let me put this way.
the client is a dumb and dont know any html or coding.
He likes to use ms word...
so any other way to load a simple document with some bold text / italic / colored text into the flash with those?
i know loading css would be an option, but then the client must know some coding if he want ajust the text...
So I'm guessing that this client would use Word to indicate the bold, italic, etc.? You can't really use the garbage that Word spews out as html, so you'll need to use some intermediary method to extract the actual html that you want and save it as a text file that you can use.
I don't know of any simple way to do this. Although any high school student could easily do a task like this, your client may not want to be bothered with the task. Maybe you could talk the client into taking on an intern to perform this task?
Just a point - I had MASSIVE trouble getting my text to format properly, even with HTMLtext activated. Couldn't get the line breaks to do what I wanted. Someone gave me a solution to that problem (which may also help you ) at http://www.actionscript.org/forums/showthread.php3?p=901907&posted=1#post901907