how to drag a...point?

ok, my english is not so good, so here are 3 screenshots.

what i want to do:
look at the graphics no1, there are black and red points. i would like to be able to drag the red points with the mouse (like in the image no2) and change the actual shape: how can i do that?

also, if it's possible, how to tell the lines not to be straight, but rounded, like in image no3?

http://www.marmotte.levillage.org/files/1.jpg

http://www.marmotte.levillage.org/files/2.jpg

http://www.marmotte.levillage.org/files/3.jpg

thanks for your help. my actionscript knowledge is good but not perfect, just to let you know ^^

hi,
if you're using MX, use lineTo to connect the dots..
i've made a file for you.. if you want to make them look "rounded", use curveTo..

Regards,
Hamza.

thanks hamzaf, your file helped me a lot.