@cvac01, I am not sure if this is your problem, but the Twitter oAuth plugin requires the PHP cURL module installed and activated.

It looks like you are on a Linux box, for Ubuntu:

sudo apt-get install php5-curl
sudo service apache2 restart

Ed, I know that it was in the docs by way of a referenced article. It might make things easier for newbies like me If this requirement was highlighted as a point.

Cheers,
Ian