QTR-Quadtone RIP

Hi,
I am re-installing after re-formating my HD, epson driver is installed and shows up.  QTR 
says it has installed successfully  but when I go to print does not show up in dialog box.  
Have I missed something.  I uninstalled and re-installed a couple  of times both Epson and 
QTR.    The file was freshly down-loaded and is version 2.5   Thanks.
Siobhan