hi,
Thank you for visiting this thread. I am working on ubuntu Hady Heron . I want to connect to a wireless network and access the files in the public folders of the remote system through wireless.I enabled the roaming mode of networking . i am able to see all the available wireless networks. Then i run the following commands

# iwlist scanning
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: 00:0B:6B:85:C4:12
ESSID:"ssid_win3"
Mode:Master
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=48/100 Signal level=-80 dBm Noise level=-127 dBm
Encryption keyn
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:tsf=000001824daa5f76
Cell 02 - Address: 02:1F:3B:00:16F
ESSID:"middown2-116"
Mode:Ad-Hoc
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=80/100 Signal level=-54 dBm Noise level=-127 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:tsf=0000000280a52a0a


and then i tried iwconfig. i got it as

# iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:"middown2-116" Nickname:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27 dBm
Retry min limit:7 RTS thrff Fragment thr=2346 B
Encryption key:6D64-3131-36
Power Managementff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


and then i don't know what to do? can anybody help me to connect to the network...Waiting for your help