Glad to note that things are fine. There are some ways to find out the details of your CPU and the speed (overclock if any) - In order to do this, click on 'Start', then right click on "My Computer" and select 'Properties' - details will be displayed.
Another option is to download 'CPUZ' and run it - here is the link for downloading: http://www.cpuid.com/downloads/cpu-z/1.56-setup-en.exe
(the purple download button) - this gadget will display lots of neat information about your computer.
Some experience in downloading programs and running them is required in order to do this. Good luck!