Xbox Live NAT connection problem

Ok, my xbox live connection works perfectly fine but for one thing, my NAT is moderate so i cant host matches, join matches or private chat with people who have moderate or strict NAT for their xbox 360 (BTW all my friends have moderate NAT). I've been told that if you can change you NAT connection to open then it will work. I have been told to open ports, trigger ports, DMZ all kind of stuff i really don't understand. Anyone who has an easy solution or a detailed (not vague) explanation on how to get my NAT from moderate to open please tell me because im really frustrated with this problem.

Just thought you should know that im connecting to xbox live through a ethernet crossover cable going from my xbox to my laptop. When my laptop is connected to the internet and plaugged into the 360, my 360 can connect to xbox live.

Also my router is a NETGEAR WGR614v7 and i have my UPnP open.

Thats from page 59 of the reference manual which is located here

tick the box, punch in ur xbox ip address, hit apply and thats it, doesnt get any easier.

I have a problem with my XBOX LIVE connection, I have a good internet connection to my PC and Laptop in my house, but for some reason LIVE keeps kicking me out all the time. So i changed my account and it was working perfect for about a week. Reason I changed my account was cause when I signed in for a year of LIVE i set location as Sweden Europe. SO i thought i had bad connection cause of that. So i changed it. So back to it worked perfectly for about a week, but now it is kicking me out of games again. Anyone with a thought of why?

Ok so abviously i have a NAT issue. Heres the thing, iv just moved in with two friends. They have lived in this house for 6 months now and have everything all set up. My Problem is that they both have live as well as i do but im the only one with a moderate NAT. They both have an open NAT. Being we are all running of the same wifi router makes it confusing. Also they both have wireless adapters and im wired. Iv tried using there wifi adapters and im still getting the same NAT. The wifi router belongs to my roomate so changing IPs and UPnPs exct.. Is out of the ?. Just curious if theres a reason and/or a solution, or if its just time to get a new XBOX. Your help is appreciated.MaanBearPigg