Quick tip: using Fiddler to catch the traffic in IE7
Some time ago, Rama gave us (users of the AJAX forums) a good tip: Using http://localhost.:12... or http://localhost./.... forces IE to use Fiddler to make the request! The problem is that IE7 is smart (in fact, maybe I should say that in this case, it's behavior is really annoying) and even if you configure it to go through a proxy, it will always make a direct call if it detects a localhost call.
Before knowing this, I was forced to use firefox or to create a web app in IIS. This little trick will save me lots of time :)
btw, Rama has some cool posts on his blog (I say some because there's only five posts there :( ). Lets hope that he starts writing frequently!