reflashing a WCF12 wireless network card

I have a Linksys WCF12 802.11b card that I want to use with WDS.  From 
the docs, I need STA firmware > 1.5, so I need to reflash it....

But when I do, using

prism2_srec -v -f wlan0 pk010101.hex  sf010804.hex

I get:

*************************
Downloading to non-volatile memory (flash).
Note! This can take about 30 seconds. Do _not_ remove card during download.
Odd.. Download request for the kernel driver failed.
Are you sure you have compiled (and loaded the correct version of)
hostap.o module with PRISM2_DOWNLOAD_SUPPORT definition in
driver/module/hostap_config.h?
In addition, non-volatile download requires PRISM2_NON_VOLATILE_DOWNLOAD
to be defined.
ioctl[PRISM2_IOCTL_DOWNLOAD]: Operation not supported

Download failed!
************************

from which I gather that the hostap module wan't compiled with those 
settings....

My kernel:

root@spitz:/etc/network# uname -a
Linux spitz 2.6.16 #1 PREEMPT Mon May 22 11:48:20 CEST 2006 armv5tel unknown

does anyone have hostap modules that will work with reflashing this card?

Or, could someone point me in the direction of a toolchain so I can 
build my own kernel?

Thanks,

--Yan