I need help with Simple Twitter Connect

I’m setting up WP for a friend so she can have her own blog site. When she publishes a new post she wants a tweet to be sent automatically, so I’m trying to get the plugin Simple Twitter Connect to work. I *think* I got the Twitter settings right and set up the plugin properly, but I am getting an error that says:

RSS Error: WP HTTP Error: connect() timed out!

What am I doing wrong? How do I fix that?

Also, under Publish settings, when I click the “sign in with Twitter” link image for “Authenticate for auto-tweeting” I get stuck in a loop where I authorize the app and a seven-digit PIN is generated. I’m supposed to return to the blog and enter the code to complete the authorization process, but I can’t find where I’m supposed to enter it.