How do I get a trial account?

You can try Scrumwise without any kind of signup. Just click the "Try Now" button in the upper right corner of the page at  www.scrumwise.com, and you will be in the tool, in an account created for you on the fly.

If you like what you see, you can keep your account by clicking the link at the top of the page in Scrumwise:

Then enter your name, email address, and the password you would like to use. After that, you can use Scrumwise for free for 30 days, with no obligations and no credit card needed.

Note that if you would like to join somebody else's account in Scrumwise, you should instead ask them to add you as user in their account.