you just want a button that when they click it, it takes people to your twitter page? You wont really need a plugin for that. Just place a link like this on your site:
<a href="your twitter link" target="_blank"><img src="some twitter logo"/></a>
WordPress doesn’t have anything built in utilities to access out side databases. You’ll have to write your own connection string for this and echo the data where you’d like it to display.
I am looking for the EXACT same answer. I know that with newer versions of mysql it would be <>
