Why cant GIMP open Ufraw- Gimp.exe

After installation, and GIMP startup, I get an error message "ufraw gimp.exe - Entry Point Not Found". Inside the error message box is the following "The procedure entry point BZ2_bzRead could not be located in the dynamic link library bzip2.dll". If I then click "OK", the program proceeds to boot up. Dragging a Cannon CR2 file in just results in errors. UFraw works as a standalone package but Gimp cannot open. I have copied all the dll files I can fins between the root directory and the user directories as discussed on the forum which allowed me to start and use Ufraw, but not from within gimp. (Win xp sp3 Gimp 2.8 and inkscape)