[orca-list] help with install

["Lenny Ervin" <LennyErvin cableone net>]

Hi All,
I am hoping some of you might help me with installing my speech synths.
I purchased a couple, including TTSYNTH.
I have a folder on my desktop called "Downloads".
I copied the TTSYNTH file that I got after purchasing it to that folder.
Then I arrowed to it and tapped the applications key, and entered on "copy".
Then I did alt + F2, and typed:
dpkg -i "paste here"
I pasted the path & package name.
It was all there, and nothing happens when I press enter.
Do I need to use the command:
apt-deb
because it is a .deb file?
Thanks.