LinuxQuestions.org - using iptables' libipq (netfilter stable?)

What I am trying to do:
I am trying to develop a small program that uses iptables' libipq to look into the queue and then accept or drop. Problem is that it seems as if the iptables-devel does not install properly and a few of the header files that are present refer to variables that they do not have access to (ie. they are missing #include statements).
I tried to go through the files based on the output and add in the needed decelerations, but it got so tedious and overly complex that I quit.
Then I included <linux/netfilter.h> and get the following error:

"
/usr/include/linux/netfilter.h:40: error: expected specifier-qualifier-list before '__u32'
"
Once again seems like something wrong from iptables-devel's end. Googleing left me confused since all suggested solutions/patches left me with more error messages then before all seemingly dead end trails. (thing is the netfilter.h has linux/types.h included where is__32 defined)

My question is:
Does anyone know of a iptables-devel package that is complete and functional?
Or am I probably forgetting something?
Perhaps this 'expected specifier-qualifier-list' is my problem and a solution for that would end my problems.

Picture of what I have:
Running Fedora 9 (this is what is running in the school lab, I have no choice to upgrade)
ran "yum install iptables-devel"
-> iptables-1.4.0-4.fc9.i386
-> iptables-devel-1.4.0-4.fc9.i386
program source for test: http://linux.die.net/man/3/libipq ("Example" code, only edit is removal of the exit(1) function)
using gcc to compile
-> gcc-4.3.0-8.i386
Think that is all the info that may be relevant.

Please let me know of any past experiences/solutions/resources that may be helpful.
Or if you would like more information.
On a tight deadline with this and this is the only thing holding me back... quite desperate.

Thanks to the community for the continued support!
M@