Yes, that link appears to be perfectly functional for referring buyers to your site and tracking that referral for any resulting sale. Clicking that link correctly set a referral cookie in my browser with expires in 6 months, then redirected me to your "PostProcessingEbook" sales page, so anything I'd purchase from you during the lifespan of that cookie would track that affiliate's referral and earn them a commission according to your specified share percentage(s).
This help page explains our affiliate system and related settings in detail:
http://www.e-junkie.com/ej/help.affiliates.htm
We also have a help page for affiliates, explaining our system from their perspective:
http://www.e-junkie.com/ej/help.for-affiliates.htm