Thanks for your information. I am having hard time to find good tool work with https request. Most of them work with only HTTP protocol. Please let me know if you have in mind any tool that works with HTTPS request.
following the last response, just go to www.webload.org and directly download the tool.
You also have there a forum where you can ask questions (and get answers in no time), a developer wiki, test scripts, how to docs... you get the picture..