So -- you successfully installed the hotfix (Update Your Kindle
NOT grayed out), and KUAL now runs?
Did you insert the update_*.bin's for the screensaver and python, into the "[userstore]/mrpackages" folder?
And then did you run MrPI?
The screen should've cleared and a bunch of text... thingys... pop up
as it tries to install the packages in question.
Where during this process, if anywhere, did things go wrong?