Dynamic Asset Loading And SWF Packaging in FlashDevelop

I've just recorded a detailed solution tutorial at 2dflashgamedev.blogspot.com.

Be sure to check it out as it applies even more so to loading large 3D assets like models and textures:

http://2dflashgamedev.blogspot.com/2011/11/dynamic-asset-resource-loading-flixel.html

The tutorial explains using BulkLoader to load asset individually into Flixel or through a SWF Class file with embedded assets.