Linksys WPC11 v4 - active but not opening web pages!

Hi there,

I've recently installed the Linuxant driver loader, which succsesfully got 
the light on my wireless card flashing and detected the network ('Tim has 2 
mums'), but even with it enabled I can't access the internet from Firefox. 
What should I do to get it working? I attach the output of iwconfig and 
ifconfig.

Thanks in advance,

Patrick.

-------------------------------------------------------------

monomaniacpat@ubuntu:~$ sudo iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

sit0      no wireless extensions.

wlan0     IEEE 802.11-DS  ESSID:"Tim has 2 mums"  Nickname:"unknown"
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:0D:0B:64:76:F6
          Bit Rate=11 Mb/s   Tx-Power:20 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:6164-7363-72
          Power Management:off
          Link Quality:60/94  Signal level:-45 dBm  Noise level:-154 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

monomaniacpat@ubuntu:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:08:74:3D:8C:D2
          inet addr:192.168.11.5  Bcast:192.168.11.255  Mask:255.255.255.0
          inet6 addr: fe80::208:74ff:fe3d:8cd2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
          RX packets:1502 errors:0 dropped:0 overruns:0 frame:0
          TX packets:782 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1012134 (988.4 KiB)  TX bytes:88012 (85.9 KiB)
          Interrupt:11 Base address:0xec80

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:43114 errors:0 dropped:0 overruns:0 frame:0
          TX packets:43114 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:13505832 (12.8 MiB)  TX bytes:13505832 (12.8 MiB)

wlan0     Link encap:Ethernet  HWaddr 00:0C:41:B2:10:21
          inet6 addr: fe80::20c:41ff:feb2:1021/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:30 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5510 (5.3 KiB)  TX bytes:2340 (2.2 KiB)

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