Importing Unicode text to a field .. How?

[Sivakatirswami]

  I converted some Mylai-Sri (Tamil) Type 1 fonts to unicode. I can open 
these in Pages, select the text, choose the native Mac OS X Tamil 
unicode font: Inaimathi New and I get Tamil glyphs... if I copy and 
paste to a field in Livecode it appears as expected.

But, now, I want to import the same unicode raw text files that I am 
opening in Pages into Livecode fields by script.

I cannot get it to work:

on mouseup
    answer file "Choose the Unicode for this song" with "OK"
    put url ("file:/" & it) into tUnicode
    set the unicodetext of  fld "Unicode_Script_Title" to line 3 of 
tUnicode

# though the above should do it ,but I get garble in the field,


#this does not help either:

set the textfont of char 1 to -1 of fld "Unicode_Script_Title" to 
"Inaimathi New"


# still garble



end mouseup

clues?