Hi,
It's as simple as downloading a Flash editor and putting the two together. There are quite a few free Flash editors available for Windows:
Flash Editor is one of the first I found via
Google. I'm sure there are many others as well
I use Macromedia Flash 8 Professional, but that is a commercial app.
You could also try a 'cat file1.swf file2.swf > final.swf' on Linux (or on Windows with
unxutils), but I'm not guaranteeing that that will work
Cheers,
-jk