Upgrading from Flash MX to Flash 8 problem

Hi, I recently upgraded from Flash MX to Flash 8 and now dealing with the following problem:
Textboxes which import external textfiles (HTML) doesn’t show upon export anymore…
It displayes correctly when exporting for flash player 6. but not for 7 and 8.
Also my graphics appear to become blurry now.
After saving the *fla in 8 it doesnt open in MX (unexpected file format)
I guess the files are ruined now?

ationscript i use:

loadVarsText = new loadVars();
loadVarsText.load(“bienvenue.txt”);
loadVarsText.onLoad = function(success) {
if (success) {
trace(“done loading”);
scroller1.htmlText = this.var1;
} else {
trace(“not loaded”);
}
};