You can intall Debian follow these steps:
1.Choose the style you want to install debian
2.Select the Language
3.Select your location
4.Select the keyboard layout
5.Configure the network,you need to input the hostname , domainname,account and password
6.configure the clock about system
7.Partition disks
8.The theme of partition disks
9.Whether write to the disk after partition disks
10.Whether scan from another cd or dvd
11.Whether use a network mirror
12.Whether paticipate in the package usage survey
13.Select the software and service
14.Whether install grub boot loador on a hard disk
15.Whether restart the system after finish the installation
16.Whether restart the system after finish the installation
17.Login the system debian use account debian
18.Install other tools and package use "Synaptic Package Manager"