Use the CSS panel on the side if you want to make global changes for a site, or even for a page. I would reccomend remote CSS rather than commands directly in the html.
This is the designer method, which I figure you would use since you are newer to dreamweaver. I do recommend you use CSS and maybe learn it more fully int he future.
Step by step...
- Right click anywhere in the designer view. Select CSS Styles > New...
- Selector type: TAG
select "a" from the dropdown list
Define in: If you have multiple pages that you want to look the same, select "new style sheet". Otherwise just choose "this document only".
- If you do create a new style sheet, save it in the same directory as your html file. A standard name is style.css.
- From there you can change the colour, if it's underlined, etc.
You may want a different look when the link is hovered. If so, let me know. But that's a whole different can of worms. It's really easy to explain to someone who knows CSS.

And since you now have dreamweaver, there's little excuse!
