Most people miss the customizing button because they are too excited to use OS X on their first time installing.

This is a little more of the info we would need to help you out:
http://www.komplett.co.uk/k/ki.aspx?...ed#ProductTabs

The ALC883 is supported in the installer. you don't need to reinstall though. Simply use MainMenu from Macupdate.com to enable "Show Hidden Files" under the Finder section of the drop-down. Then navigate to the Install DVD and look in the System/Installation/Packages/ folder for the updates you need to enable your computer to work properly again.

For the network issue... just reset it back to manual in the System Preferences -> Network.

Don't forget to "Hide Hidden Files" again via mainmenu.

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