I was the one who asked about this back in January. It's been a while so I went ahead and added the ability to use "cut and paste" flash games to my site via the script myself.
If anyone wants to do it themselves it wasn't hard at all. Basically you just are making another text field in the admin form, another field in the games table, and the few changes to the content.php script to add it to the db (see the keyword part for an example). Then you check via the game.php script and if there is something in that field you use the text in that field (embed code) if not you use the swf file on your site as normal.
If you are going to do it yourself, please know you are doing it at your own risk. Make sure you know something about php and mysql before trying it, and make backup copies. It took me about 30 minutes to do completely, from admin form to what the visitor sees, but that was only because I had to look at the script to see what was what. If you know something about coding you should be fine.
I hope an official update for this function comes out soon, but until then at least it's possible
