The wireless card can not use after I upgrade to 8-CURRENT. IBM THINKPAD T23

[Razor]

The card works well in FreeBSD 7.0-RELEASE. After I upgrade to
8-CURRENT. The wlan0 can not associate with my AP. Here is my rc.conf
and wpa_supplicant.conf

rc.conf:

wlans_wi0=wlan0
ifconfig_wlan0="WPA DHCP"

/etc/wpa_supplicant.conf:
ctrl_interface=/var/run/wpa_supplicant
network={
    ssid="FreeBSD"
    scan_ssid=1
    key_mgmt=NONE
    wep_tx_keyidx=0
    wep_key0=ABCDEF01234567890ABCDEF012
}

ifconfig wi0:
wi0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
        ether 00:20:e0:8a:2d:88
        media: IEEE 802.11 Wireless Ethernet autoselect mode 11b
        status: associated

ifconfig wlan0:
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:20:e0:8a:2d:88
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        ssid "" channel 10 (2457 Mhz 11b)
        country US authmode WPA1+WPA2/802.11i privacy ON deftxkey UNDEF
        txpower 0 bmiss 7 scanvalid 60 roaming MANUAL bintval 0