Iptables and layer7 matching

[hugies]

Hello,
I have tried to search the forum, but found only questions without clear answer.

So, is there possibility to get layer7 matching with iptables working in Asus?
I see that there is missing module in /usb/lib/iptables. And probably kernel is not patched too.

Does anyone have it working in wl500gx ?
And (maybe the most important question :)) is there any howto to get it working?

Thanks for your aswers.
Petr