Tweet Deets allows you to see the twitter buzz about a topic at a glance.
To install manually, place the tweet-deets folder directly into the wp-content/plugins/ directory.
Then activate the plugin from the WP-Admin Dashboard.
Once activated, you should visit the Options page, which is found under the Settings menu in the dashboard. Here, you can set the scope of the search, how many pages of tweets to gather and which elements you wish to display.