Z3ta+ s/n ????

Hi I purchased sonar 7 pe and it came with z3ta+. Now I'm tiring to update it but for some reason it wants a s/n for it. It did not come with one other than the sonar 7 pe. Do you know of any work rounds if not how do I install it.

Thanks

plectrumpusher

Yea I found that out. Which is cool. but just the same you still need a s/n to update in the future so I emailed them and with 2 days they sent me a s/n.