(Flash MX) Need help with a hitTest

I am making a mouse avoider game and I have a mc (cursor) that follows the mouse with a very small delay and I have a mc (lvl) which the cursor must navigate through. When I run a normal hitTest function it doesn’t discriminate between the parts with color/without color in my lvl mc. The player dies instantly. I have tried this,(http://www.kirupa.com/developer/actionscript/advanced_collision.htm) it didn’t work at all. I do not understand the bitmapData.hitTest function but am aware that it could help. Any ideas on how to solve this?