Dr_Waffles,
again, there is a difference between simply "opening" ports, or (doing which is actually required) and
forwarding (all traffic on certain) ports to a specified
internal IP address (ie. your PC)
Please follow the step-by-step guide linked-to right under the GREEN writin in the OP of
this threadThat guide has everything you need to know with regard to SINS-networking and what you'll need to forward through/past your router.
If you have issues correctly completing steps in said guide, please post in the thread I linked you to or PM me on these forums. I'll be glad to help.
thanks,
the Monk