I cannot activate the Outlook tab! What can I do?

To synchronize your Outlook data you need to install and configure Outlook completely. As long as Outlook is not completly installed, you cannot click on the Outlook tab. 

Please note that SYNCING.NET does not support the click-and-run (click-to-run) installation of Outlook 2010. It is possible, that you will get the same effect with this installation.