Attaching MCs to a curved line...?

Hi everyone,

I need to attach a series of mcs to a curved line. These mcs are attached through actionscript with the attachmovie code, they do not tween, just attach at intervals one after another. Its hard to explain i know. When the user presses a button on the screen the first mc appears at the start of the curve, another press attaches another mc perhaps 10px inwards on the line and so on.

Does anyone know any actionscript that will cause these mcs to attach to this motion guide? Or actionscript that will make the mc attach and snap to the curved line??

Thanks, and merry xmas!!

Steven.