Captcha how to???

I have a few captcha scripts and have them working great, but how do I make it work in my current contact and registration forms?

I can post my captcha scripts that do work on my machine but can't seem to get them to work on my current pages offline.

Is there someone who can give me a tip or two.

try looking at tutorialtastic.co.uk there's a section under MODS of how to write a captcha.
Sure it's for bellabook mod for sign up--but the concept is there for how to write a captcha and implement it. I use it on my contact forms.

Thank you 7370616D6D6572
I utilize dreamweaver.
I have it sorted already.