Hi Sucesos.. welcome to the DSLNuts Forum!

I tested the link you listed and it worked fine for me (I use IE 6.0)
As for how to use it.. once you click on the link (if you can get it to work) it will display a listing of all your current set up.
You copy that (leave your IP# out. we usally xxxx it) to a thread in the CableNuts Forums.
That way we can look at what you have and make suggestions!
Hope this help... any further questions feel free to start a thread (post) in the Cablenut Forum.
But Thanks for the question on the Analzer link. Sometimes they may be to busy and you can't get the page. But keep trying.. it will work.
Another thing.. Make sure your firewall isn't blocking access. That link needs to read your PC settings.
Buggy
