Re: How do I? Flash Website, etc

1. To keep the active button on the on state, you need to put a conditional in the onRollOver/onRollOut statements. Basically, you set a global variable up like this:
var curPg:Number = 0;//current page

When a button is pressed, you set curPg to the new page (Ex. 0 for home, 1 for portfolio, 2 for about me, etc). Then your button code would look like:
portfolio_btn.onRollOver = function():Void{
if( curPg != 2 ){
portfolio_btn.gotoAndPlay("over");
}else portfolio_btn.gotoAndStop("on");
}

You just set up labels at the different keyframes of the button code so that you can refer to them more easily.

2. The best method is the easiest way you can think of to do it. I'd put the buttons on one layer first frame, the content on another, with a different frame for each page. The buttons just control what frame you're on.

3. The best way (not easiest) to load pictures that are external is to use a MovieClipLoader. Looks like this:
var picLoader:MovieClipLoader = new MovieClipLoader();
var picListener:Object = new Object();
picLoader.addListener(picListener);
picLoader.loadClip("pic.jpg", someExistingMovieClip);
That's the basics. It replaces "someExistingMovieClip" with the picture. That only gets you one picture into one holder.

4.Dunno

5.Describing dynamic loading/naming techniques would take me at least the length of this reply. Hint:
You want to use CreateEmptyMovieClip(this, "picHolder"+i, etc) to create multiple pic holders. Try searching for dynamic image gallery. I know www.kirupa.com has an XML based tutorial that will be of some help, though might be confusing getting around the XML stuff.

-Sam