I have a linux server in a remote location. I have access to it only via putty. How do I install GUI on the linux server and view the GUI on my windows laptop?

I installed KDE and when I type startx I get errors.

I think cloning the hard disk from server1 to server 2 is a good idea. What do I use to clone the servers and is it possible to clone hard disk from server1 to server2 remotely?

Thank you for your response. Im unaware of all the software dev1 is using to run the website. If you know how to do it, can I hire you or anyone on here to do it, Im willing to pay for it.

Hi
I have two servers running Red Hat 3.4.6-11 CentOS release 4.8 (Final); lets call them dev1 and dev2.
Dev1 is running a website which uses tomcat and oracle and other software that Im unaware of. Dev1 is going to go offline because it needs some maintenance. So, while dev1 is offline, I want dev2 to do the job. I have access to dev1 and dev2 through putty since they are at a different location in town. What steps can I take to make this happen?