I'm confused.
Let's start over
The files you downloaded are at the desktop.
so in the terminal type
No lets see if the files are there.
Type
you should see 2 files with the extention .deb,
type
Code:
sudo dpkg -i firstfile.deb
make sure this filename contains cwcupswrapper
Then type
Code:
sudo dpkg -i secondfile.deb
make sure this filename contains cwlpr