Unable to activate trial licence I would like to test out Craft Pro to see if it would be a good fit for my next project.

I have one issue. I have followed the instructions to install Craft CMS @ http://site1.craft.dev - but am unable to see the upgrade/test link in the footer?

Here is a screen shot of the domain I have it installed at:-



Here is a screen shot of the footer:-



How would I activate the trial licence (I am probably missing something obvious, so forgive me if this is the case) :)?
I know it sounds silly, but try refreshing or clicking another tab (like entries). What you should see is in the attached screenshot. 

Click that box and click "Try" and you should be all set.