I see no way to register either.
 

They've hidden or disabled registration after the community took a serious spam blow a few weeks ago.

 

You could email sales@ and ask for assistance or wait for them to hopefully see your post.

wow, did not realize that, I thought the lack of spam was from captcha integration...

 

Seems like they may be limiting new customers this way.

This makes absolutely zero sense.  How are prospective customers going to ask questions about the SmarterTools products?  If they're like me, they want to hear from existing customers, not someone in the sales department.  There are better solutions to handling bogus registrations.