I hope I am in the right place. My Purchase Order Form has worked well for me until recently a spammer has started sending me stuff. I would like to make some changes to make it harder for them to use.

I created the form with form maker pro. Part of a service from web host. The form can be found at
http://billygorilly.com/forms/purchase-order.html

here are my questions

1. How can I add a capcha to my form in form maker pro? or by changing the code in dreamweaver.

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

3. What setting or code 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?

I know this is a lot of questions but any help would be appreciated

Thanks