How Can I Burn DVD's on my PowerProducer 3?

simple as this, i have created an entire slideshow DVD on my PowerProducer, and when i click the arrow to go to the final steps, it wont let me click on "Burn DVD." I need it for my boyfriend and I's anniversary, which is monday. But i just can't seem to get it working right. Maybe its just me i don't know, all i know is i don't have a brochure to tell me how to work it. Please help! Fast......