These steps are specific to Windows Box.I am on Win XP
1.Start your Selenium server
You can create a batch file as below & just double click with start the server
add java -jar selenium-server.jar to a file & name that as seleniumserver.bat
2. Download Active Perl
3.Now you gotto install Test-WWW-Selenium packages.
4.Invoke perl package manager from your command prompt like this ppm
5.A GUI will open up search for Test-WWW
once you locate the selenium package on the list Run the marked actions.
So you are all set with the selenium packages that are required for you to get going.