Problem with the PSP's Flash Player

Recently, I started using a plugin for Firefox to download Flash games. Now, I've gotten the following games off of Newgrounds.com:

• McDonald's Videogame [1.36MB]
• Territory WAR [982KB]
• Saved by Your Balls [2.82MB]

Even though the first two are under 1.5MB, they won't play. At first I thought that if I converted them to *.fla, opened them in Flash, went into the media list thing (can't remember what it's called), deleted the sound files, then converted it to *.swf, then it would work.

The problem? It didn't. Even when the file size was perfect to begin with, it still wouldn't work.

And I can't find a good program to remove the audio directly from the SWF. I can't even find a program to replace them.

Can anyone help me?