AJ Muni said:
forget it i gave up. i f***ing hate PC'S!!!!!!!!
Well, it's easy to give up, but it shouldn't be THAT easy!
It's certainly possible that your system administrator has set the network up in such a way that only authorized systems can connect, but there may be a much more simple issue to do with network settings.
If nothing else, you need to ensure that your iBook is set up in the same way that your PC is. In many instances that will be to accept settings from a DHCP server. You can check this on your PC by looking at your TCP/IP properties and seeing if the system has a specific IP address assigned to it, and subnet, default gateway (router) and DNS server addresses. If it does, you need to set these in your iBook. If you see 'obtain IP address automatically' in your TCP/IP properties, then on the iBook, open your network preference pane, select the built in ethernet page, and next to where it says 'configure IPv4, select 'Using DHCP' from the drop down.
If that doesn't work, then check the proxy settings on your PC (Internet control panel/connections tab/LAN settings button) and if there is anything set where it says 'Proxy Server' duplicate it in the proxies tab of the iBook's Built-in Ethernet network preference pane.
At the very least, that should give you the same settings, so any failure after that is more likely than not to be system security related. At THAT point you might want to give up!