Get yourself a copy of this book, either thru interlibrary loan or buy it (I strongly suggest the latter if you are serious about this venture).
It's called Publish Your Patterns, How to Write, Print, and Market your Designs, 2nd Edition, by Nancy Restuccia (McKenna Linn), 144 pages, ISBN-10: 0971450102, ISBN-13: 978-0971450103. It's 19.95 at Amazon.com, but you can get it for 17.95 at Quilting Books Unlimited (she gives a 10% discount on all books).
http://www.qbu.com/shop/prodetails.asp?prodid=1740
The info on what it covers can be found on the publisher's websire here...
http://quiltwoman.com/nr-09.aspx
Good luck ...and stick with it!!