What would you suggest for this idea and is it easy to do?

Basically is it easy in AS3.0 to make a tool that does this. It would be in a minisite:

I want it so users can input string data (as in sentences, messages kinda thing - I guess here I’d user dynamic text boxes ) and after they enter it I want on my side of things to make a new keyframe so that the data is added onto the tool, and it will stay there. This continues on as more people add their own messages.

So basically a system where new data is added and the original data is still there. So it’s like a constant system where new keyframes are made as more people input their messages.

Is this easy enough in 3.0? Got any tips to help? Anything will be much appreciated, and how best I should go about it in CS3.

Many thanks in advance! Olly