Problems compiling gnome 1.2

[Sean Murphy <murphy erim-int com>]

*** Currently running October Gnome on RedHat 6.1 system ***

Seeing that Gnome 1.2 has been released as a stable product, I was
attempting to download and install it.  First off, I noticed that the
Gnome web site only is offering tarballs now, and that any binary
distributions need to be downloaded from Helix Gnome (please correct me
if I'm wrong here - I couldn't find any 1.2 rpm's on Gnome's FTP site).
I decided instead to download the sources and compile my own rpm's.
However, I seem to be getting errors on a lot of the sources - I'm
compiling in alphabetical order and I'm up to the glade package and so
far haven't been able to compile ORBit, dia, gdk-pixbuf, and gdm, due to
various errors (which I'd be happy to provide if asked).

So now I'm wondering if I shouldn't just go ahead and use the Helix
gnome installer.  Before I do that, I have a couple of questions about
it.
1) do I need to uninstall the October Gnome rpm's first, or will the
Helix installer see, recognize, and replace/update them?
2) will the Helix installer update me to the Gnome 1.2 STABLE release,
or does it update to development versions of packages?  I want to run
stable software, not bleeding edge development versions on this
machine!  I noticed the go-gnome script says this is a preview release
of Helix GNOME, so that is what has me confused on the stable/devel
level.
3)  Is this the way that future Gnome releases are going to be done -
that Gnome's ftp site will only carry sources and that binary version
will come from Helix?

Thanks in advance for help!