Questions about Q318365

I run a sign shop and regularly print long wide-format
graphics from my computer, which uses XP Home Edition. I
saw the Q318365 support page and was glad that you were
finally addressing the Windows GDI limitations issue that
plagues my industry. The support page said I needed to
download the latest service pack updates (to SP1a) and it
would fix the problem. It also told me the problem was
in the win32k.sys file, and I looked at that file and the
specs did not match.

So I downloaded the files, restarted my computer, and
looked at my System Properties, and it still says I'm
running under SP1, not SP1a. Also, I checked the
win32k.sys file, and it still was not updated to the
version listed on the support page. I looked at the top
of the page, and it said the issue was for XP
Professional. That leads me to a few questions:

-- Does this support page apply to XP Home?
-- If not, are you going to address the Windows GDI
limitations issue in XP Home?
-- What is the info on the latest version of the
win32k.sys file for XP Home?
-- Would it say "SP1" on the System Properties box if I
actually downloaded SP1a? Or is SP1a only for XP Pro?
-- Is upgrading to Pro the only way I'm going to work
around the built-in length limitations in Windows?

Thanks for your time, and I look forward to your reply.

Ernest Woodward