Unload movieclip

Hi

Can somebody help me. I’d like to unload a movieclip after I have loaded a jpg.

Here is my file, the clip i’d like to unload is the preloader, which is just an animation of 4 squares.

I know i have to use the unloadmovie, but i’m having trouble with the getbytesloaded and getbytestotal.

can somebody write me an example in my file.

Thanx in advance.
scarlac

please please please help me