htb errors, I need patch?

["Alex" <alexiruc rdslink ro>]

I downloaded iproute2-2.4.7-now-ss010824.tar.gz and I did patched tc with
the htb3.6_tc.diff from htb3.6-020525.tgz and when I try to use a htb script
I get just errors. I did not patch the kernel, since I use kernel 2.4.21 and
I saw on - HTB Homepage that I need to patch it only if I run version 2.4.20
or earlier. Do also need the kernel patch ? Or maybe is something else
wrong?

RTNETLINK answers: No such file or directory
Deleted old root disk on eth0
Unknown filter "flowid", hence option "1:10" is unparsable
Unknown filter "flowid", hence option "1:2" is unparsable
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument

Thanks!

Alex