Ok, I appreciate the previous posts here. they helped a lot. But, I have a problem. Before getting a Nokia N900, I had a Nokia E63 on which I had been using WhatsApp for a while, having signed up in 2011. Now, with Yappari, I'm totally unable to sign in, or register, but I'm aware it's not any issues of registration. Please help? Oh, and Scorpius, all the best.