Flow tool issue

 From:  gunter511
7149.1 
Hi,

I am trying to deform the oval donut shape into a longitudinally concave shape. Hopefully the image explains what I mean.
Problem is I'm not able to do it. I click on the shape first, then click Flow, then deform, then base line curve, then target curve but it doesn't work.
Could someone please point out what I'm doing wrong?

On another note, when I take a screen shot of the moi UI to show you guys what my problem is, I have to add annotations in Photoshop. Does Moi3d have any way
to annotate?

Thanks much.
Gunter