Postal 2 problems

[ckucd]

I have installed the game, applied the official 1337 patch, and used a fixed/no-cd exe. The error message I get is this:

"The application or DLL C:\Program Files\Postal2\System\vorbisfile.dll is not a valid Windows image. Please check this against your installation diskette."

Any thoughts on how I can fix this?
Thanks ahead of time :-)

-Chris

-- *update* --

I have since downloaded generic versions of the files: vorbis.dll, ogg.dll, vorbisfile.dll. Now I am getting this error when I try to run Postal2.exe:

<?int?Engine.Errors.FailedBrowse?>

<?int?Core.Errors.History?>: UGameEngine::Init <- InitEngine


Thanks.