This is difficult to answer because it takes more knowledge than I can provide.
FORMs are a different beast, they often are used to communicate with a server that handles submitted information. That server has a URL that the FORM submits too. That's what you need to change in the HTML of the ACTION attribute. You must already know what you are doing or research and work with a site or server that will handle the FORMs submission.
I have not messed with BSS's Smart Form function to see about getting my component to work with it. I don't have a lot of time these days to do things like that.