Stream/embed .flv movies in web project

I’m pretty experienced in making flash based websites, but I’m a beginner in the steps it takes to upload them and using them within hosts/servers… so this is my situation:

I plan on my website to play videos, but the load time was ridiculously too long when the videos were placed within the project, I believe it was about 26MB. So I took them out and render each of them as separate .flv files, then I uploaded each one on my server in my /videos folder. So before I upload my main flash site I need to tell it where the movies are; do I do this as action codes? if so, how and what? To help specify, each movie will be on a separate frame, I have them all made but they’re empty except for a “back” button to the main frame.

As a side question, should the videos be flv. or .swf? (keeping in the mind load time and quility overall.)

I’d appreciate any advice!