Michael 3 does not come with Poser 6. You can download the base figure for free (it's at download.com, don't have the link right here). You will probably need the morph packs to really make use of the freebies you downloaded, and those morph packs are not free. You can buy them at www.daz3d.com

Furthermore, that Celebrity Wizard freebie is most probably a texture set for the Michael 3 Wizard robe. Another item that is not free, you'd have to buy it at www.daz3d.com

Freebies here on Renderosity should state what other items are needed to use them. Most clothing and textures are for the Victoria 3 figure (also a free base figure, but like Michael 3, you need the morph packs available at www.daz3d.com to really make use of the figure) or for clothing for this figure.
So check the details! It should be in there. And if the freebie is for a figure or clohting you don't have, don't bother downloading. You won't be able to use it.

The figures that come with Poser 6 are called James, Jessie (the adults), Ben and Kate (the children). There is not much freestuff for these figures.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

My gallery   My freestuff