Vicki, Victoria , V4 are all names of one of the  Daz3d female figure. The Base V4 is free but you eventually need the morphs pack.  I dont think V3 is free at Daz anymore but its in a bundle at download.com, search for Daz. 

Poser 8 should have the content from P5 and up so you should have at least 4 male and 4 female figures to choose from.

 

The V4.2 bundle is on sale and may be good value to  get started.