If you got it before now, your problems are addressed in this thread - from ssl errors to 1.5.4 etc. To get it originally you signed up on their website - essentially registering it. You have an account number in your config file.

Since the servers are still up, it's worth fixing your files rather than switching to ezpopulate as mc12345678 just suggested. Ezpopulate is extremely hard to use.

I just had a tweet only a few weeks ago from someone who works at Aspona and got no indication of problems. I'm thinking the website issue is temporary because they have a viable business doing other things besides this mod.