Thanks to a suggestion from Chaim Just A Tweet now has a short code you can use inside your posts and pages.
The shortcode is just_a_tweet and you pass a twitteruser parameter. So if your Twitter account was bob you’d enter [ just_a_tweet twitteruser=bob ] inside your post (without the spaces next to the brackets). It’ll work exactly the same way as inserting a PHP call to the just_a_tweet php function but you don’t need to have php enabled for inside your posts.
The PHP code still works just like it did before so you can use the plugin in your themes outside of the loop.
You can download the new version from the WordPress plugin library or upgrade through WP admin.