swf (if were thinkin of the same thing) is a flash file that is like a finished copy of a flash file. If i was to make a flash animation (in Flash Pro 8 for instance), i would first save it as a .fla file (you are still able to edit it in this format) and then export it as a swf file (File/Export/Export Movie). There are some options you can choose for size and quality... depending on what it is, i usually try to keep it small, considering it is going on myspace, you my wanna keep it smaller because myspace is kinda slow to start with.
Then you just get you HTML tags together (google that, pretty simple stuff) and then insert it into your myspace (under whatever section you want)...
Hope this helps, Good Luck.
Originally Posted by King of Kings
are both or any of those free?
There are free trials of both, but flash is expensive to buy, if you want a "legal copy" that is.