[CentOS] Problems getting my wireles connection to work

I have an Everex laptop (ick, but it was super cheap) that has an
Atheros wireless NIC in it, but I can't seem to get it to connect to
my wireless in-home LAN.  Here's what I've done so far (that isn't
working) - any suggestions?

[root at marktop mark]# lspci | grep Ether
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 7c)
05:01.0 Ethernet controller: Atheros Communications Inc. AR2413
802.11bg NIC (rev 01)
[root at marktop mark]# iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:off/any
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

[root at marktop mark]# iwconfig wlan0 essid hrfamnet-101
[root at marktop mark]# iwconfig wlan0 enc XXXXXXXXXX [not really...]
[root at marktop mark]# iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"hrfamnet-101"
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:XXXXXXXXXX
          Power Management:off

[root at marktop mark]# ifup wlan0

Determining IP information for wlan0... failed.
[root at marktop mark]# iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: 00:1C:F0:58:9A:31
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=47/70  Signal level=-63 dBm
                    Encryption key:on
                    ESSID:"hrfamnet-101"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              12 Mb/s; 24 Mb/s; 36 Mb/s
                    Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000073d81085b2
                    Extra: Last beacon: 468ms ago
                    IE: Unknown: 000C687266616D6E65742D313031
                    IE: Unknown: 010882848B960C183048
                    IE: Unknown: 030106
                    IE: Unknown: 2A0102
                    IE: Unknown: 32041224606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD0900037F0101001FFF7F
                    IE: WPA Version 257
                        Group Cipher : Proprietary
                        Pairwise Ciphers (64) :
IE: WPA Version 1
                        Group Cipher : Proprietary
                        Pairwise Ciphers (22768) :           Cell 02 -
Address: 00:D0:9E:F6:B3:19
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=39/70  Signal level=-71 dBm
                    Encryption key:on
                    ESSID:"2WIRE067"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    Mode:Master
                    Extra:tsf=00000002b79d1987
                    Extra: Last beacon: 554ms ago
                    IE: Unknown: 00083257495245303637
                    IE: Unknown: 010582840B162C
                    IE: Unknown: 030106

[root at marktop mark]#

What step am I missing that will connect me to the listed access point?

I've looked this up in Google, but frankly the mass of information
there is either off point (ubuntu, SuSE, etc.) or Windoze or doesn't
apply to my NIC or something else.  I've spent a whole day on this one
and I'm no closer to a/the solution - well, I did get as far as the
above.

Thanks.

Mark