flexisign 10 starter-->??

Hello, today i want to see if someone can help me:
I bought a used vinyl cutter from a private party and he gave me the KEY or DONGLE for flexisign 10 starter, but he lost the actual cd :(
my question is: is there a way to download flaxi starter 10 somewhere? and i just punch in the info that is in the key, that should work right?
I was looking on google but i run in to soo many dead-end sites and some not legit.
any help will be highly appreciated.