Start by putting the logo on the left and the text alongside, on the right
of the graphic.

See the "More complex letterhead" section of
http://sbarnhill.mvps.org/WordFAQs/Letterhead.htm

Put the logo in the first-page header set to wrap text.

Take a look at: How to set up letterhead or some other document where you
want one header on the first page and a different header on other pages.
http://www.addbalance.com/word/headersfooters.htm This gives step-by-step
instructions. (It also has the following links)

Some other pages to look at:

Letterhead Tips and Instructions
http://sbarnhill.mvps.org/WordFAQs/Letterhead.htm

Letterhead Textboxes and Styles tutorial
http://addbalance.com/word/download.htm#LetterheadTextboxesAndStylesTutorial
(for simulating different margins on different pages, among other things)

Template Basics
http://www.addbalance.com/usersguide/templates.htm

How to Create a Template - Part 2 - essential reading
http://www.mvps.org/word/FAQs/Customization/CreateATemplatePart2.htm

Word "Forms"
http://www.addbalance.com/word/wordwebresources.htm#Forms and

Word for Word Perfect Users
http://www.addbalance.com/word/wordperfect.htm if you are coming from a WP
environment (or even if you are not).

Hope this helps,