Walkdesigner doesn't work very nice with Vicki or other Daz figures, because they have an differented "bone"-structure than the original Poser-figures. There is a special walkdesigner with walkcycles for Vicky3 from Nerd3D, but this is not free. You can make your own walkcycle by making a 30-frame animation of on complete step and put the complet animation in the walkdesignersection of the pose-library. It appears in walkdesigner and it works but it needs a lot of tweaking to make it look natural.

-How can you improve things when you don't make mistakes?