Movie clip troubles

I’m quite new at scripting and I’ve encountered something kinda complicated(to me anyway). I am making a website where i have animated characters that are movie clips. I want to be able to load another movie clip upon clicking on them and have it display centered while my animation plays behind it. I want the movie clip to go away when you click away from it all without disturbing the animation behind it(I don’t want the anim to skip) The movie clip I want to load has a dynamic text box in it that loads a text file with scroll buttons. I have, surprisingly enough, got the movie clip to load, unfortunatly not in the right location and my scroll buttons no longer work.
I’ve tried tutorials and searched all over the forums looking for a solution. I’ve gotten close but still no cigar.
If anyone could offer some help with scripting it would be much appreciated.

this is how I loaded the text
loadVariables(“textfile.txt”, InstanceName_0);

(I don’t know if you need to know that part?)

I put action scripting on the first frame of the movie clip I want to act as a button but it is definately wrong! P.S. I’m using Flash MX