AS2.0 - comparing differences in 2 flash sites preloaders

i have recently done a flashsite for 2 artists (one page each). both have picture galleries constructed in a simmilar manner, which are a bit heavy for dial-up surfers (being a bit more than 8mb). i made preloaders for both sites based on the same code.

one one site the preloader shows for a fair amount of time (36 seconds to more than a minute, depending on which computer it loads on) while the other shows the preloader for only a few seconds (about 3 seconds) before displaying the content.

here are the websites, some stats and the code for you to see and compare the difference

http://www.tarmotristanteng.com/Art/index.html

flash is 8.9mb in one swf file
this site takes longer to load / shows preloader during entire loading period and only shows content following reaching 100% loaded state.

Code:

---

this.onEnterFrame = function() {
        var amount:Number = this.getBytesLoaded() / this.getBytesTotal() * 100;
        preloader._xscale = amount;
        if(amount == 100) {
                this.gotoAndPlay(3);
                delete this.onEnterFrame;
        }
}

---

http://www.daviscremar.com/photography/index.html

flash is 8.6 mb in one swf file
this site shows the preloader for a shorter duration of time, does not show bar reach 100% before displaying first content frame.

Code:

---

this.onEnterFrame = function() {
        var amount:Number = this.getBytesLoaded() / this.getBytesTotal() * 100;
        preload._xscale = amount;
        if(amount == 100) {
                this.gotoAndPlay(3);
                delete this.onEnterFrame;
        }
}

---

are similar results occurring on others computers? what may the difference be that these two pages differ in load time so vastly?
:?