Stuck on two thing for my flash site - plz help!

Im making a flash website, the site is a gaming clan for a james bond theme.

[COLOR=#22229c]http://mi6-licensedtokill.com[/COLOR]

site info :
heads = are links to member pages
content (to be added) = inside the golden border on the dossier material
right side (to be added) = other links to be placed there.

as you see its got fairly basic animation to it so far, the title brightens and stuff, on a loop in main scene, and so far the gun keeps firing every double loop of the scene. (its imbedded movie is double the frames of the main scene 1)

The issue is, i want the gun to only animate once every time a person enters the site (and on refreshes), but i dont want to stop the main scene, coz then it would stop the title effect. - note every time the movie plays through it has 2 text effect and 1 gun animation.

so once again

I want to be able to stop the gun animation from appearing on the second and consequent scene loops til a refresh or they re-enter the index. … how do i go about this?


other issue :

I want a music file to then play the second the glass shatters in the first and only planned gun animation, and then that file of music would continue to loop.

thanks if you understand and have some help

-nick