First you have to download the driver for the saa7130
First maybe you could look the kernel-howto
but is very simple only make a simlink in the kernel source tree to linux, no linux-2.xxx
then use the patch ..
Note. For me I use the second patch (Kraxel) because the third didnt work for me.. a saa7130 too
look in the /usr/src level
1 copy the patch
2 if the patch is a gz (gziped) use (* this is your case)
$ zcat patch-2.4.23-kraxel.gz | patch -p0
or if the patch is unziped use
$ patch -p0 < patch-2.4.23-kraxel
and the patch was done
... Then you need to compile the xawtv app..
I recomend you if you can download the linux kernel 2.6.0 (stable) because this kernel have the v4l2 included, (saa7134) too
Ahh you have to select in your kernel configuration
as a module or compiled in