Tutorials

• GSA Captcha Breaker Ultimate Tutorial & Honest Review – The All-In-One Automatic Captcha Solving Tool
• How To Automate Captcha Solving With GSA Captcha Breaker

Some good tutorials have been written by very active forum user Ozz (thanks again):

SDK for Dummies - How to improve existing captcha definitions
SDK for Dummies - How to make your own captcha definition