Our dashboard will display either a list of your Portal 3.0 Portals, or your license key and other relevant information for Portal 2.0. If you are using both versions of Portal or need to switch between the two to test one, you will need to toggle between the two options.
To access your Portal information, click on 'Portal' from the left navigation pane, under 'Configuration'. When looking at your Portal 2.0 license key view, you should see a banner at the top that either looks like this:
Click on the "Are you a developer? Try it now ->" or "Click here to switch to Portal 3.0 ->" links to switch over to your Portal 3.0 view.
If you are in Portal 3.0 and need your Portal 2.0 license key, underneath your list of Portals will be a banner that looks like this:
Click "Go Here ->" to switch over to the Portal 2.0 context.
For more information about the differences between Portal 2.0 and Portal 3.0, you can check out this comparison article.