Once you have completed the New advertiser account form you will be able to log in to the WiAd.net system. You will automaticly be granted 100 free 728x90 banner ads placed on various websites arround the world as a free demo of the system.
You can check your free ad runs at: AccountReports. If you would like to purchase an ad block see here. If your a network provider of any size and want to offer the WiAd advertising system on your network see here.