Preloader broken. :(

OK In a previous game on the same AS (2), I made a preloader, the code worked fine, all of the code was isolated on one frame so on another game I copied the frame and pasted into my other game. but the only difference is that one of my games is using flash player 8 (working preloader) and the other is using flash player 6 (not working.) Im using the same code.
here is the frame code (all of it on frame):

Code:

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var loadingCall:Number = setInterval(preloadSite, 50);
function preloadSite():Void {
    var siteLoaded:Number = _root.getBytesLoaded();
    var siteTotal:Number = _root.getBytesTotal();
    _root.percentage = Math.round(siteLoaded/siteTotal*100);
    percentDisplay = _root.percentage+"%";
    bytesDisplay.text = "loaded "+siteLoaded+" of "+siteTotal+" bytes";
    if (siteLoaded>=siteTotal) {
        clearInterval(loadingCall);
    }
    trace (_root.percentage + " percent")
    if (_root.percentage >= 100) {
                trace("percentage = 100")
    }
}

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I get the output error of this when played :

Code:

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**Error** Scene=Scene 1, layer=preloader, frame=1:Line 4: '{' expected
    function preloadSite():Void {

**Error** Scene=Scene 1, layer=preloader, frame=1:Line 17: Unexpected '}' encountered
    }

Total ActionScript Errors: 2      Reported Errors: 2

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I just relised the preloader code is AS2 but my game is AS1 will someone tell me how to fix it please, it's probaly really simple.

Maybe try something like this...

Code:

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var loadingCall = setInterval(preloadSite, 50);
function preloadSite() {
        var siteLoaded = _root.getBytesLoaded();
        var siteTotal = _root.getBytesTotal();
        _root.percentage = Math.round(siteLoaded/siteTotal*100);
        percentDisplay = _root.percentage+"%";
        bytesDisplay.text = "loaded "+siteLoaded+" of "+siteTotal+" bytes";
        if (siteLoaded>=siteTotal) {
                clearInterval(loadingCall);
        }
        trace(_root.percentage+" percent");
        if (_root.percentage>=100) {
                trace("percentage = 100");
        }
}

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