Are those jps or bmps tileable? You can either use them in a paint program like Photoshop or Gimp and use them as fill on a texture template or you can use them directly in Poser 7 by attaching one of them to the diffuse node in the material room. Anything less than 1.0 on U_Scale and V_Scale and putting the Image_Mapped part of the node to tile will tile it across your object.

The node you'll need is 2D Textures/Image_Map

Laurie