animating deformations

Hi all:

I have a very very simple question on a very very simple task. I’m getting crazy modelling deformations!!!. I have a tutorial for blender 2.43 and I have the 2.46 version. Somethings have changed from one version to the other in the keyverts management.

Could someone tell me how to animate deformations on this new version??? please??? I’m not talking about bones or cages or complex things, just a box being deformated!!!