The navigator is available as an ebook in multiple formats.
For smashword PDF, epubs kindle etc go to;
http://www.smashwords.com/books/view/67309
The Ipad and Iphoneros out there should find the itunes ibookstore link useful
http://itunes.apple.com/us/book/the-navigator/id453334126?mt=11
Nook Bookers, Nook Book and Barnes and Noble fans,
http://www.barnesandnoble.com/w/the-navigator-steve-merrick/1026977999
Sony e-readers and kindle fans should hit this link,
http://ebookstore.sony.com/ebook/steve-merrick/the-navigator/_/R-400000000000000460248
Diesel ebook store.
http://search.diesel-ebooks.com/index.php?page=seek&id%5Bm%5D=&id%5Bc%5D=scope%253Dinventory&id%5Bq%5D=steve+merrick
But Really type The Navigator by Steve Merrick into google or any other search engine.
I will add more links as I go here though 
Steve