I think there was some error with that webpage. Now, the webpage gets fully loaded.
The method which I had followed earlier is, when I click Debug icon, after trying to launch it notified me that I need license and asked me to register. When I clicked Ok, it took me to terms and conditions page and when I clicked that I agree, it took me to activation ID page. (This is where previously nothing was loaded). Now, it had an activation ID and directed me to check my email address after I gave my MAC address. Finally, the license file was mailed to me. Now, my CCS is licensed!
Thanks,
6G