Procedures and Information on Setting Up Ethernet LAN for Small Office

I need to setup Ethernet LAN which I will use on my small office that has 10 users. It should be connected to my computer or office workstation to my Internet Service Provider Access Point on the vendor's network.
I need the procedure for setting up DSL under the DSLAM vendors like Lucent and then explain it. And also, I need an explanation on cables, wireless connections and LAN and how they function generally. Please describe home or office connections and the overview of the networks.
Thanks in advance.
