Unicode - Tamil Text Problem

Hi,

Latha is a unicode font for tamil text.

I have embedded this font in flash.
now if i can filename.swf?text=tamil

I see tamil in dynamic box
But if i type, filename.swf?txet=[COLOR=#000000][FONT=arial]தமிழ்

I dont see anything. why that so?. Without embedding, I can use any text in dynamic text box.

I am creating mask effect with text. So, I want this to be embedded. Font name is latha.ttf
[/FONT][/COLOR]