There are some free scripts that you can use successsfully which may not have all the bells and whistles of paid scripts but as I recall you were looking for results.
You can always Google: Viral Traffic Generation Script
or some other keyword terms if what I (or others here) have suggested is not fruitful for you.
You could always offer a bribe such as $100 to everyone who forwards your message to 10 people, and the same to those people and the same to... nah ... that would never work. LOL
Much success to you!