auditing patch

[Shem]

I'm, attempting to patch samba source with a auditing diff to have access
to more thorough accounting of file usage.

patch tool is GNU patch 2.5
samba source is samba-2.0.4b
diff file is samba-audit-2.0.4.diff
Red Hat Linux release 5.2 (Apollo)
Kernel 2.2.3 on an i486

When patch is run from the correct location (the directory containing the
source directory) using patch -p0 < samba-audit-2.0.4.diff, I receive a
huge amount of fails 

i.e
"
patching file `source/smbd/reply.c'
Hunk #1 FAILED at 1503.
Hunk #2 FAILED at 1649.
Hunk #3 FAILED at 1904.
Hunk #4 FAILED at 1935.
Hunk #5 FAILED at 3174.
Hunk #6 FAILED at 3362.
Hunk #7 FAILED at 3660.
Hunk #8 FAILED at 3751.
8 out of 8 hunks FAILED -- saving rejects to source/smbd/reply.c.rej 

"

 has anyone used this diff file ( other that the guy how made it, whom I
must say has been very helpful, but I baffled him with this problem, as he
has no trouble patching with it )

does anyone know what could be causing my troubles?
if so please advise

Shem