tellTarget prob/question in flash

hey, (am using flash 5)

i have a main movie(main.swf) with th content on, and an actionscript to
loadMovie(menu.swf,"");

on that menu.swf i have my menu system, one of the links is "home" and i want this to

goToandPlay("1");

on the main movie(main.swf).

I understand and can use TellTarget. how can i make one movie effect another?

I've tried

TellTarget(main.swf){
GoToandPlay(1);
}

help what is the code!? thanks

TellTarget is to tell objects to do something, I don't think it applies to whole clips. I could be totally wrong too.

I never really undestood why people make so many different .swf's, when you can just make new objects inside the same file?

lol the reason ppl make so many movies is so it reduces loadin times and breaks down th website.

if the whole website is 1000k (example) and each of the 5 movies are 200k each, then to make the first page work it takes 1/5 the time. then when you click a link it then loads another 200k movie then it all loads quicker than 1000k to start with.