The “Kohana Tutorial” pages are pants. Not so much for their content, but for the fact that they have a pretty damn unorganised wordpress blog and finding useful info isn’t exactly made easy. What they need is a post/page at http://learn.kohanaphp.com that lists the most important tutorials, rather than forcing you to wade through the whole blog.
Anyway, rant over, I’d start here:
http://zacklive.com/hello-world-tutorial-for-kohana/15/
Then:
http://learn.kohanaphp.com/2008/03/26/blog-tutorial-1/
http://learn.kohanaphp.com/2008/03/28/blog-tutorial-part-2/
Other articles of interest:
http://www.ninjapenguin.co.uk/blog/2008/06/21/kohana-pagination-tutorial/
http://learn.kohanaphp.com/2008/04/25/using-auto_modeler-to-write-quicker-code/
http://www.ninjapenguin.co.uk/blog/2008/06/29/practical-kohana-hooks-example-phpids/
http://learn.kohanaphp.com/2008/04/14/5-tips-to-help-you-find-something-youre-looking-for-in-kohana/
And, of course, Google.