Kuro No Tsuki English Patch Help

Alrighty, so I'm using Windows Vista and it's already proven to dislike rgss files {if you have any advice for this, it'd be great} but I tried installing Kuro no Tsuki and the patch today. But the error I keep getting is as follows:

A fatal error has occurred while patching Darkness of the Moon.
The error returned was: Unable to Open Source File

Depending on when this error occurred, Kuro no Tsuki may no longer function correctly.

And there was a link, however it no longer seems to be active. I don't know if this is just Vista deciding that it hates me or what, but any advice would be great...

:hi:
Reight click on the patch icon and then properties. Assign it to run on compatibility - XP mode :bingo:
F

I've got Windows XP and I get the same error. I tried solving it by changing the compatibility, but it didn't work. There's only Windows 95, 98, ME, NT and 2000 in the list. I can't find Windows XP mode. Is there something else I can do?

I'm using Vista, and tried using Xp mode to Install, I didn't work, I got the same 'Fatal error' message.

I cna't try another operating system, Vista is all I have avliable to me, bumping this up incase soemone has a solution. I'd be very grateful - thanks!