duplicateMovieClip in Flash 8

programming flash
1

the following script works in MX, but not in 8.

duplicateMovieClip("star", "star"+i, +i);
setProperty("star"+i, _rotation, Math.random()*360 );
setProperty("star"+i, _xscale, Math.random()*60 );
setProperty("star"+i, _yscale, Math.random()*60 );
i = i+1;

help me please.