Tweaking Form Maker Pro to guard against spammers

[moviemedic]

I have several question about my form made with form maker pro which can be found at

http://billygorilly.com/forms/purchase-order.html

FYI-I am on a MAC computer...

1. How can I add a capcha to my form in form maker pro?

2. How do I make it so email and confirm email have to be the same to submit form.

3. What setting should a phone number be on to keep spammers from inputing 1234

4. We only accept PO's from the United States, is there a way to have the State field only accept US entries?

5. Is there a way to stop spammers from adding links into the comment section?

The form has worked great until recently when a spammer started using it.

Thanks

[moviemedic]

Re: Tweaking Form Maker Pro to guard against spammers

Is this to many questions or nobody knows the answers?