How do you get the clock code in your own website?

Also do you know why my web site is not accepted into banner exchange, it is about NPC Head hunting service, and NPC sales. I have a banner and i also have a freewebs website, what do i need to do?

No idea on the clock, you'd have to ask one of the programmers.

As for the banner exchange, I believe that is run by Ranma but he's kinda on LOA for a long time.

http://rules.swcombine.com/?Counters

Actually the banner exchange (& combine topsite list, links library) is run by the Community Director: Rhyasan Kronos
For the banner exchange you can contact him at bannerexchange@swcombine.com

Also to have your account working you will need a linkable banner that is 468by60 and be able add an html code to your site that is visible upon visiting the link you supply.