Cannot register vCenter Server Appliance in vSphere Web Client

Hi,

I am trying to install vCenter Server Appliance 5.0. I have gone through the initial steps and deployed the OVF Template etc using vSphere Client. Then I installed the vSphere Web Client on my Windows 7 machine and tried to Register the server Aplliance by specifying:

vCenter server name or IP: https://192.168.1.xxx:5480

User name: root

Password: vmware

vSphere Web Client Server name or IP: https:// 192.168.1.zzz:9443/vsphere-client

in the browser.

I get the SSL certificate warning, I ignore it and then I get the following error:

Failed to connect to the vCenter Server "https://192.168.1.xxx:5480".

I also tried registering the web client in vCenter Server Appliance by following this link:

http://virtualbyte.wordpress.com/2012/01/16/vcenter-server-appliance-how-to-register-a-vcenter-in-vsphere-web-client-by-command-line/

But when I run the command:

$ ./admin-cmd.sh register https://192.168.1.zzz:9433/vsphere-client https://192.168.1.xxx root <password>

I get the following error:

Running command register
Cannot connect to vSphere Web Client administration tool.

Kindly help me in this regard,

Thanks in advance.