You can find the Bricklink Designer Program details here
This is the main BrickLink Designer Program page, and it’s the best place to stay on top of what’s being voted on, what made the final five, and when the crowdfunding window opens. Since the voting and ordering windows are short, I always recommend bookmarking it if you don’t want to miss a set you actually want.
You'll be taken to Bricklink to complete your purchase.