MovieClipLoader for start after only partial DL?

programming flash
1

I have the standard code to use MovieClipLoader in Flash 8 and it works great on my big swfs.

But I can’t figure out how to modify the code to get the clip to appear after only a part of it has downloaded. (For some of my many-paged swfs. I only need to make sure the first page loads; the rest can follow later.)

I’ve tried fooling with this line:
//var preloaded:Number = Math.floor(loadedBytes / totalBytes * 100);
like this:
//var preloaded:Number = Math.floor(loadedBytes / totalBytes * 10);
or this:
//var preloaded:Number = Math.floor(loadedBytes / (totalBytes / 25));

The loader still runs, but doesn’t load the file any faster. Any ideas? Thanks.