I am unable to access my localhost from URL

my /etc/network/interface settings are listed as follows:

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0

iface eth0 inet dhcp

are my settings wrong?
can someone please help me.

Hi,

Hello
I was wondering if anyone could help me, I have been trying for around two days now to get my rather old computer(could be the problem) to a WPA2 secured wifi point but for the life of me I can not figure out where or what I am supposed to do, the computer can see the network and I think it tries to connect but it only gives me options to connect to anything other than WEP and LASP as well as some other that i can't find because
I don't know what program it opens in.
I would greatly appreciate any help because I am completely lost.
Thanks in advance.

i am absolutely new to Linux and Debian

i have installed debian via netinstall (latest version).
i have DEll LATITUDE C 600 LAPTOP.
ALL Debian Installed and in the end it installed

1=Graphical User Interface
2=laptop
3=additional system software.
now i restarted and it went to graphical options
Debian
and windows
i selected Debian

it showed a lot of text lines and then asked me >>>Login i gave my longin name and password
it then showed me no Graphical user interface or any window rather it showed me command prompt like thing
now how i get into Graphical user interface???
please help
should i write some command to get into Debian Graphical User interface???
why it is not going into windows like GUI environment rather it is DOS like environment.
please guide

Trying to get online wirelessly I encountered problems connecting by means of wpa_supplicant.
I have an IBM Thinkpad R32 running Debian Lenny without a desktop manager. For the WLAN connection I have a PCMCIA WLAN card from 3com. WLAN worked with this card and this laptop both under Windows and under Ubuntu. The access point I am trying to connect to only allows WPA2-encrypted connections. With my other laptop (Lenovo Thinkpad R500, Ubuntu, Gnome) WLAN works fine.
Here is what I did and what the results are:

1.) I boot the laptop with deactivated wired interface eth0 and without the card inserted, so after startup only loop is up and running.