What do I have to do to make my computer wireless

If you go to the dock at the bottom of the screen you will see system preferences. Click on it to open it. In the third row down (usually) you will see an icon that says Network. When you click on it you will see a list of network devices on the left side of the window that is open. In that list will be Ethernet, FireWire, and Wi-Fi. If Wi-Fi is not listed, you do not have a wireless card active in your OS. To fix this go to the bottom of the list, you will see a littl plus symbol. Push the plus symbol to add a network connection. In the menu that pops up you will see a drop down next to "interface." If Wi-Fi is not in that list, you do not have the hardware installed in the laptop for you to use wireless. The missing piece of hardware is called an airport card. It was not standard for laptops to have them when your iBook was made.

If however, you discover that the Wi-Fi is present, you need to set it up to work with your wireless network. As I have no idea how that is configured, I can only guess at what you may need to set up. You'll need to make sure you are connecting to the wireless network that you use by selecting the Wi-Fi device and clicking "advanced" in the bottom right corner of the window. From there you will need to make sure your network settings are configured correctly.