I was downloading a movie at 1.25 kbit/s, it was slow so I decided to change ports, under setting/firewall. I changed it to about 6000, and guess what. All of a sudden, my download speed climbed up to 10kbit/s more for about 3 seconds, then it slowly climbed back down to 2 kbit/s, and stayed there. When it got too slow again, I tried changing ports again, this time to 7000, and it climbed back to 12 kbit/s for about 10 seconds, and so......
What I'm trying to say is, it works. Although not every time it still is a blessing. You should try it yourself. I really don 't know why it does this, but if there was only a way to automatically change ports every 10 minutes or so...
I'd also like to know if anyone has gotten a rise in download speed by changing supernodes. How the heck do you find the right one that brings out the best download speed out of all the IPs shown in the table? Does kazaa automatically choose and connect to the best supernode for the file your downloading? Do supernodes really help increase download speed?