Ay yi yi... It's a little hard to explain properly, but here goes (from copying Multify on.):
1.) After copying Multify (from the Panda3D-1.7.0 folder), go to: C:\Documents and Settings\??? (from My Computer, ??? would be your name, I guess. Whatever the username for your computer is at the log-in screen.)
2.) Paste Multify here.
3.) Go to: C:\Program Files\Disney\Disney Online\PiratesOnline and copy a phase file. Ex: phase_1.mf
4.) Go back to C:\Documents and Settings\??? and paste the phase_1 here.
5.) Go to CMD (or Command Prompt, you can find it in All Programs\Accessories)
6.) Type multify -x -f phase_1.mf in CMD. (Adjust the number for the Phase File number)
7.) Hit Enter. If nothing appears below it, YOU'VE DONE IT RIGHT.
8.) Go to C:\Documents and Settings\???
9.) You should now have a copy of the phase file, in a regular folder. It is easy to view music/sfx and maps, but don't ask me about the models. :P
10.) Repeat with all other phase files.
11.) You should now have all the phase files in Documents and Settings. Enjoy! I hope this helps, because I worked hard on it. If
anyone needs
any help, PM me. I'll be glad to (try to

) guide you through the confusing process.
POSTSCRIPT: Many people confuse My Documents with Documents and Settings, THEY ARE NOT THE SAME. Make absolutely sure to go to Documents and Settings, in My Computer, if you want to do it the posted way.
ANOTHER Postscript: As Stella said, I have minimal Windows 7 experience also. I can help you a lot on older OS's, but I know nothing about Windows 7. To me, 7 likes to keep you out of those files, just so they don't chance someone deleting an .exe file that is required for Windows. As far as I know, it shouldn't stray too much from those directions. Good luck!