Jquery conflict with form?

HI,
I am trying to use your form with conditional fields and payment.
It appears not to work due to jquery conflicts with my template - could you take a look at www.jobstar.net.au/standard-job-ad.html .
If you select 'sign up and pay for an ad now' - either 1 or more ads, then the form should update with new form fields and questions.
It used to work, but for some reason it doesn't work for me anymore.
Can you have a look?

Hi

Please submit a support ticket sending us super admin account of your site. I will ask my javascript developer to check and solve the conflict to get it works for you

Regards,

Tuan