_root.loadVariables("yourTextFile.txt");
put that in one of your frames and that will load your text file to your flash movie
you can load different variables into flash by separating with an & sign, for example:
myName=David Ronnie&myWebSite=http://www.theflattestcat.com
you can do this as many times as you like, just making sure that you place an & before the next variable name you like as that is how flash interprets a new variable name, then all you do to call it is go:
_root.myName or _root.myWebSite