I use Gamebryo, but I think that's a little out of the scope of most people here. If you mean flash games, i suggest you take this to the correct forum
Go to file > Publish and you should have a .swf file where you .fla is saved.
I tried to before but the .swf is in grey. I can't click on it. All of my files are .sol. I don't think I can upload them to the internet as as .sol, right?