Eninna,
I created an application following the steps from the blog you listed. I did this in the FireFox browser. When I got to this step:
![](/legacyfs/online/201030_pastedImage_0.png)
I clicked on Save and then on View. In my screen afterwards, there is a place for me to sign in to Twitter:
![](/legacyfs/online/201031_pastedImage_1.png)
Do you see this part? After I click on the blue link, I can sign into Twitter.