As mentioned, affiliates and copy are key. Firstly, the affiliates:

Make sure you're offering 100% on the front end and have an OTO or upsell (at least 1) in place - otherwise a lot of affiliates won't touch it. If you can afford a contest, that's a good way to kick start that as well. Post in as many JV groups about your launch details as possible. Secondly, the copy:

Your system works which is great. You'll want to include screen shot proof of this. For example, a shot of commissions that came into your account within a certain time period of that 1 blog post.

Testimonials - right on the sales page - are huge. By all means give out a review copy or 2 and get some well known people testing your product, in exchange for a testimonial that you can put right on the sales copy.

Guarantee - completely optional but a proven conversion booster. Your call.

Obviously there are volumes written on how to attract affiliates and how to write converting copy, but those are a few key tips that should point you in the right direction. Hope it helps!