How do I remove a corrupted keyboard layout and/or program?

I used Microsoft Keyboard Layout Creator 1.4 to install a modified
Arabic keyboard on my Windows Vista Home Premium 64-bit machine. It was
the first time I'd used the software, and I failed to specify that I
wanted it installed under one of the Arabic "regions." I also didn't
know that the keyboard shows up on the list under what was entered in
the "layout description" and since I hadn't entered anything in that
field it just called it "Layout01 Description." The problem is that the
installation has somehow messed up the MKLC 1.4 user interface (the
keyboard image visuals with the key assignments/patterns, etc.) As a
result there's just white space. Moreover, no matter how many times I
remove and re-install MKLC 1.4 it always shows this same "Layout01
Description" as the active keyboard. This is even when I load a
different source file, with a different name. I can even load a source
file (although I can't edit it, because I can't see anything) and it
will create the necessary setup files to deploy the new keyboard.

But when I look for the new keyboard layout that was just installed
successfully, according to the "wizard" message, it's not there.

Again, somehow this "Layout01 Description" (or something?) just keeps
corrupting the program. And I can't remove the "Layout01 Description"
keyboard, or completely remove the program itself. It does disappear
from the program list, though. Using the setup file it acts as though
it's either installing or removing the keyboard, depending on which
action was toggled last, but the keyboard is always there.

Are there instructions for manually removing the keyboard layout? Has
something in the registry been corrupted so that subsequent
installations/removals of the program and keyboards don't work?

BTW, when I run a setup file for a keyboard created on my XP box
(because I can't actually see the editor in Vista) Vista reports that
the setup file is attempting to install the AMD 64 bit version. So I
cancelled that and deliberately clicked on the intel 64 .msi pachage
instead (because I don't have an AMD processor) I get a message saying
that the installation isn't supported for this (Intel) processor type.
In other words, it runs the AMD installation even though I don't have an
AMD machine. Is that normal? Does it do that because my machine is a
Core 2 Duo processor, and the Intel option isn't compatible with dual cores?

At any rate, I'd like to uninstall both the keyboard and the program
completely, but I can't seem to do that. Something keeps "lingering" no
matter what I do.