Aweber form validation

Hi, I need to added some client / front end validation to my Aweber form which has been included in my website. The url is: [login to view URL] Fields which need validation: 1: Name - this is mandatory field, need to make sure value is entered. 2:Email - this is mandatory field, need to make sure value is entered. Also basic email validation. 3: Property address - this is mandatory field, need to make sure value is entered. 4: Post Code - this is mandatory field, need to make sure value is entered. 5: Estimated value - makes sure that only numbers are entered i.e 100000 I also would like to make the * (indicating fields are mandatory) in red font. Regards, Robbie