Your kernel dont got ALTQ support.
Here a quick guide how to add it.
Replace the 9.0 with your version.
If you got amd64:
PHP Code:
fetch ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/9.0-RELEASE/src.txz
else
PHP Code:
fetch ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/9.0-RELEASE/src.txz
after its downloaded execute these commands:
PHP Code:
tar -C / -xvzf src.txz
cd /usr/src/sys/`uname -m`/conf && ee GENERIC
paste here:
PHP Code:
device pf
device pflog
device pfsync
options ALTQ
options ALTQ_CBQ
options ALTQ_RED
options ALTQ_RIO
options ALTQ_HFSC
options ALTQ_PRIQ
options ALTQ_NOPCC
save it and run:
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cd /usr/src && make buildkernel KERNCONF=GENERIC
and when its finished:
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cd /usr/src && make installkernel KERNCONF=GENERIC
After reboot your server and the pf should run without any problems.
Also better edit this

and upload it via sftp/ftp to prevent those syntax issues.