Dynamic variable creation

I have a map file that I'm trying to read in and load sprites dynamically off of. Maps can be as small as 4 x 3 or as big as 60 x 60. I saw something in the strategy tutorial about creating new objects on the fly, but I can't seem to get it to work. The manual code looks like this:

$map00 = new t2dStaticSprite() {
scenegraph = SceneWindow2D.getScenegraph();
	imageMap = "tilesgroundImageMap";
	class = "MapTile";
	frame = "1";
	size = "120 100";
	position = "600 440";
	layer= "30";
	x = "0";
	y = "0";
};

The variables need to be based on the location on the map (ie map00, map01, map10, map11, etc), but I'm not going to know how many to create until I get the first couple of lines in from the file (number or players, height and width). I've also tried using an array, but I get syntax errors when I try to load that way.

%file = new FileObject();

if(%file.openForRead("~/data/maps/test.map"))
{
	%numplayers = %file.readLine();
	%maxx = %file.readLine();
	%maxy = %file.readLine();
	
	echo("Number of Players" @ %numplayers);
	echo("Max X" @ %maxx);
	echo("Max Y" @ %maxy);

	%line = %file.readLine();

	for(%j = 0; %j < %maxy; %j++)
	{
		for(%i = 0; %i < %maxx; %i++)
		{
			%place = getWord(%line, %i);
			%mapplace = new t2dStaticSprite() {
				scenegraph = SceneWindow2D.getScenegraph();
				imageMap = "tilesgroundImageMap";
				class = "MapTile";
				frame = "1";
				size = "120 100";
				position = "600 440";
				layer= "30";
				x = "0";
				y = "0";
			};
			echo(%place @ "-");
			$map[%i][%j] = %mapplace;
		}
	}
}
else
{
	error("CANNOT OPEN FOR READ");
}
%file.close();

So what am I doing wrong? I tried doing $map @ %i @ %j in place of the $map[%i][%j] but that didn't work either. Any thoughts or suggestions?