Upload flash site

hi, i’m a newbie here and have a question.i have upload a flash website and it works.but there is a small problem.when i first open the website,it always ask to “click to activate and use this control”.it alway happen when i browse using ie but with firefox its ok.i’ve tried with other pc but still face the same problem.so it is not about ie right?
by the way,i just uploaded the file just by publish it through flash in html format and then upload it…i did the right thing right?:worried: