How to animate a sequence of shapes on a motion path

Hi All.
I am trying to animate a moving line of dots on a curved motion path but can only do one at a time. What I need is a stream of dots moving along the line as I need to show something 'coming from here and going to there'. I've tried to get a particle emmitter to spit out dots that follow the path but no joy there. I can't do it with a replicator either. Will I just have to laboriously animate one dot then dupe it and offset tons of copies to get the effect? Seems a bit long-winded.
Any ideas would be very greatfully received.
Many thanks
Roger Harris
Quad G5   Mac OS X (10.4.5)  

Refer to specialcase's tutorial on drawing lines with the replicator, and you'll have the basics. It's a stellar explanaexplanation of the Sequence Replicator behavior and how it can be used to animate things. Ms. or Mr. Case rules.
http://www.motionsmarts.com/tutorials/drawinglines/drawinglines1.html
Beyond that:
- draw a dot
- draw a wavy line with the Bezier tool
- replicate the dot
- in the inspector under the replicator tab, change the shape to geometry, then drag your wavy line into the shape source well
- increase the number of points 'til they fill your line
- go to the behavior button and add the Sequence Replicator behavior to the replicator
- add opacity as the parameter and start mucking about
Here's the project -- 'dots.motn'
http://homepage.mac.com/longstrider/FileSharing7.html
Cheers

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