no wireless toshiba satellite L30-134 ubuntu 10.04

Hallo !
I freshly installed ubuntu 10.10 to this toshiba satellite L30-134. After minimal attempts of getting wirelessly online, i decided to install 10.04 hoping that the problem there is already fixed. No, it isn't; i still have no wireless - doesn't even see it (when i right-click the icon and go to edit connections>wireless). So, after a long search, i failed to find an answer. Here is some output of commands the results of which i saw some people sending. Hopefully they will help you help me...
thankyou
Basili

valentina@valentina:~$ sudo ifconfig -a
[sudo] password for valentina:
eth0 Link encap:Ethernet HWaddr 00:16:36:b4:4e:55
          inet addr:192.168.1.134 Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::216:36ff:feb4:4e55/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:14462 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11650 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:19200731 (19.2 MB) TX bytes:1168565 (1.1 MB)
          Interrupt:21 Base address:0xa000

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:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:480 (480.0 B) TX bytes:480 (480.0 B)

wlan0 Link encap:Ethernet HWaddr 00:16:e3:9a:61:33
          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)

valentina@valentina:~$ lspci
00:00.0 Host bridge: ATI Technologies Inc Device 5a31 (rev 01)
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:12.0 IDE interface: ATI Technologies Inc IXP SB400 Serial ATA Controller (rev 80)
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (rev 80)
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 82)
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller (rev 80)
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)
00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge (rev 80)
01:05.0 VGA compatible controller: ATI Technologies Inc RC410 [Radeon Xpress 200M]
09:01.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)
09:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
09:04.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
valentina@valentina:~$ lshw -C Network
WARNING: you should run this program as super-user.
  *-network:0
       description: Ethernet interface
       product: RTL-8139/8139C/8139C+
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 2
       bus info: pci@0000:09:02.0
       logical name: eth0
       version: 10
       serial: 00:16:36:b4:4e:55
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical
       configuration: broadcast=yes driver=8139too driverversion=0.9.28 ip=192.168.1.134 latency=64 maxlatency=64 mingnt=32 multicast=yes
       resources: irq:21 ioport:a000(size=256) memory:d0100000-d01000ff
  *-network:1
       description: Wireless interface
       product: AR2413 802.11bg NIC
       vendor: Atheros Communications Inc.
       physical id: 4
       bus info: pci@0000:09:04.0
       logical name: wlan0
       version: 01
       serial: 00:16:e3:9a:61:33
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath5k latency=168 maxlatency=28 mingnt=10 multicast=yes wireless=IEEE 802.11bg
       resources: irq:22 memory:d0110000-d011ffff
valentina@valentina:~$