Had this one on quite a while ago, but since it got lost with my old s9y stuff ill repost it 😉
cbt4free.org features some very good video tutorials for various network administration tasks such as DNS and Webservers in both Linux and Windows environments. These videos will only supply you with very basic knoledge but are a good start.
You will also get an impression on the differences of administrating a Linux and a Windows Server (in case you havent noticed yet 😉 )