Well, thought that was going to be a simple process! Using the WordPress Jetpack – worked once then got connection errors!
Googled this error – hmm, seams a number of people are having this problem.
After trying a workaround that did not work – decided to install a Twitter plugin – that was easy. Setup done.
Then been having fun playing with the plugin’s CSS settings to customise the layout – looking good now. 🙂