[Plugin: Twitter widget pro] want to add php for auto user

i want to add this code so the widget will show the twitter feed of the page author automatically.

<?php the_author_meta( 'twitter' ); ?>

this calls the inputed data, where the user input their twitter url when they edited their profile.

this should (when inputed into the twitter url form of the widget) make the widget dynamic. meaning tha whatever authors page your on, it should show that authors tweets.

but for some reason php doesnt work. is there a way to either not use php or edit the plugin files to acheive this?