FLV Files

I imported an flv file into a flash professional document. I have this flv file on my server. My goal is to create an swf file with the flv file in it and embed it into my website. I need to have some movie clips that I placed on the main time line to play at exact times in the video. For example, when the person in the video says " hello" I want my movie clip which is on the main timeline to play. This movie clip has some text that will animate the word “hello”. The problem I have is how can I make sure that my movie clips match up with the video? I noticed that some times the video plays slowly on my website and the movie clips that I created play before they suppose to. I know there is a way to make sure that my movie clips play at the appropriate times according to the video. I know you can add cuepoints in the flv file and you can control this with the built in control buttons but for this video, I do not want any control components meaning no play button, pause button, etc. Can someone help? Thanks.