airo2 - When artists create character products for V3, they often use morphs that were made by others like Daz3D; usually, specifically, the V3 Head and Body Morph Pack, available at Daz3D.  So you need not only to have purchased the V3 Base, and the character of an artist, but also the morphs that the artist used.  Each artists products should clearly tell you what morphs you need to have to use his/her product.  In the case of many of Daz3D's morphs, after you install their morphs, you can then find the morphs in a folder named "!DAZ," within your RuntimeLibraries folder.  If the !DAZ folder is'nt there, or if it is there but does'nt contain the proper morphs, then Poser does just keep looking for Deltas!   What is happening is that you are trying to inject morphs(the Deltas,) that just are'nt where they are supposed be; either because you hav'nt purchased them yet, or because you moved them by accident.