Usually when Poser can't find the (a) texture, it isn't there.  This could be because there really is no texture file, because the filename/extension is incorrect, or because it is in another Runtime that has not been included in the Library.

For the first, nothing to be done.

For the last, you must include the Runtime.

For the other, this is a shortcoming of Poser.  They really should either make the image type ubiquitous (it differs on Windows and MacOS for instance) and/or ask to search for alternative image extensions.  'eh hem' - interPoser Pro will do this.  It will search for JPG, PNG, TIF, BUM, GIF, BMP on image files that weren't found if the user desires it.

All that said, there is something called CorrectReference that will fix image and geometry references in Poser content.  I'd suggest getting and using this to relieve your image requester woes.

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

Contact Me | Kuroyume's DevelopmentZone