cli cron job how to set up

Putty is no more complex than a ftp client. It allows you to connect to a server with SSH. Once you're connected, you can enter the command you want: test your script, set up cron jobs etc.

If all you want to do is set up a cron job, then maybe your provider have an option to do that in the control panel.
I made a quick search and found this: http://www.startlogic.com/knowledgebase/...cleID=1443