unable to connect neither via wireless nor via ethernet

How is this related to wine? This is clearly a networking question. Please associate questions with th correct package in future.

Can you please provide the output of:

sudo lshw -C network; ifconfig; sudo iwlist scan

You can use a USB stick to transfer the output in a file to a system with connectivity.

Thanks

i did that unknowingly m sorry..
here's the output:
lshw -c network:
  *-network DISABLED
       description: Ethernet interface
       product: 88E8039 PCI-E Fast Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 14
       serial: 00:1d:72:6b:ea:5d
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical
       configuration: broadcast=yes driver=sky2 driverversion=1.23 firmware=N/A latency=0 multicast=yes
       resources: irq:30 memory:f4200000-f4203fff ioport:3000(size=256)
  *-network
       description: Wireless interface
       product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wmaster0
       version: 61
       serial: 00:21:5c:1a:84:13
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list logical ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn latency=0 multicast=yes wireless=IEEE 802.11abgn
 resources: irq:31 memory:f4300000-f4301fff

          ifconfig:
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)

wlan0 Link encap:Ethernet HWaddr 00:21:5c:1a:84:13
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wmaster0 Link encap:UNSPEC HWaddr 00-21-5C-1A-84-13-00-00-00-00-00-00-00-00-00-00
          UP RUNNING MTU:0 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

 sudo iwlist scan:

lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 Scan completed :
          Cell 01 - Address: 00:50:F1:12:12:10
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=30/70 Signal level=-80 dBm
                    Encryption key:on
                    ESSID:"WA1003A"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000012f1bc099db
                    Extra: Last beacon: 1652ms ago
                    IE: Unknown: 000757413130303341
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0101
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD0A0800280101000200FF0F
          Cell 02 - Address: 00:1B:57:D4:01:33
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=46/70 Signal level=-64 dBm
                    Encryption key:on
                    ESSID:"makk"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000000020fad26d1
                    Extra: Last beacon: 1516ms ago
                    IE: Unknown: 00046D616B6B
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD060010180200F4
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK

here in this command my wireless network is scanned then why doesnt it show it in the network icon on the top right.
plz help mate..

Ok well the wireless scan completed and showed some eSSIDs which is good:

ESSID:"WA1003A"
ESSID:"makk"

I'm guessing makk is yours due to the better signal strength.

If you add the install CD as a repository, you can install wicd which may give better results, the hardware is there and works fine but just needs a little nudge to get connected

Can you also give the output of:

cat /etc/network/interfaces

As you may have some remnent config in there

cat /etc/network/interfaces :
auto lo
iface lo inet loopback

auto dsl-provider
iface dsl-provider inet ppp
pre-up /sbin/ifconfig wlan0 up # line maintained by pppoeconf
provider dsl-provider

auto eth0
iface eth0 inet manual

auto wlan0
iface wlan0 inet manual

and are you talking about install cd of wireless drivers???
i have a laptop so i dnt hav an install cd.

as i mentioned earlier it worked fine earlier so what has happened now??

Thanks actionparsnip, that solved my question.

thanx mate ur a great help!