You are probably better off just downloading the official documentation. (take the pdf to kinkos or any other print place and they'll print it out and bind it for you. i have a machine at work that does this and it is the best way i've found.)

The tutorials out there are most likely outdated. Snort changes so frequently that the only way to stay up to date is with the official documentation.

snort 2.4 docs
http://www.snort.org/docs/snort_manu...ort_manual.pdf

snort 2.6 docs
http://www.snort.org/docs/snort_manu...ort_manual.pdf

I'm in the process of testing an upgrade to 2.6... there are considerable changes between 2.4 and 2.6 as far as preprocessors, dynamic processors and configs are concerned. fun stuff!