I believe I have set up my card (Exterasys XN-2522G-2400, which uses the tnet1130) correctly but it won't access my AP. Is there some wireless setting that I need to tweak, or did I not set up my card correctly? here are the outputs of the various files/commands:

start_net script:

[root@localhost scripts]# ./start_net
wlan0: unknown interface: No such device
wlan0 deconfigured, module unloaded.
Module successfully inserted.
Setting rate to 11M.
Setting channel 6.
Trying to join or setup ESSID any.
Setting mode to Auto.
Interface has been set up successfully.
SIOCADDRT: File exists
--------------------------------------
wlan0 ifconfig

[root@localhost scripts]# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:E0:98:B9: D0:48
inet addr:10.0.1.10 Bcast:10.255.255.255 Mask:255.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:576 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:19 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:12
---------------------------------------------------------------------------------
wlan0 ifconfig:

wlan0 IEEE 802.11b+ ESSID:"Microsoft" Nickname:"acx100 v0.2.0pre8"
Mode:Managed Channel:5 Access Point: 00:00:00:00:00:00
Bit Rate=11Mb/s Tx-Power:20 dBm
Retry min limit:5 RTS thr: off
Encryption key:xxxx-xxxx-xx Security mode: open
Power Management: off
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
--------------------------------------------------------------------
iwconfig settings:

[root@localhost acx100-0.2.0pre8_plus_fixes_10]# iwconfig wlan0 essid "Microsoft" channel 5 mode Managed key xxxxxxxxxx ap 00:09:5B:85:73:08 commit nwid off

Kinda guessing here but your ifconfig shows 19 errors and your netmask is 255.0.0.0 - is your ap set up accordingly. Also, you might check if your ap channel is the same - they generally use 1,6, or 11, unless configured different.