problerm downloading 1.18 patch

Hello,

I just signed up for this impulse website so forgive me if I am missing something... I downloaded Impulse and attempted to download the 1.18 patch for Sins of a Solar Empire. It asked me to register the product so I entered my e-mail address and the serial number on my manual. It said it was invalid and would not allow me to proceed. I did not download it from the site but purchased it in store.

This seems like a great deal of hassle to download a patch. Could someone please assist me?

Thanks!

Adam