Cache Problem - Loaded txt wont update

Okay, so I’ve made this blog template for my sister. It can be found at
[color=Red]this link[/color].
Don’t critique the content please, that’s my sisters words and information. Anyway, it dynamically loads the txt document upon clicking a link in the navigation. Test it out for functionality purposes. So, if I go to it and click on it, it loads the external txt document but if I change the external document and click the link again it wont show the new information unless I clear the cache. SO, I took
[color=Red]this tutorial[/color]
and it wouldn’t load the external txt document at all… BTW, here is the example script on the recent posts button…

on (release) {
current = new LoadVars();
current.load(“blog_current.txt”);
current.onLoad = function(success) {
if (success) {
// trace(success);
info_txt.html = true;
info_txt.htmlText = this.myNews;
}
}
}

What do I need to do? I want it to load the newest stuff and not cache it. I dunno.
-Fenrir