Out, out damned spot!
The package-get-base.el file is at:
ftp://ftp.xemacs.org/pub/xemacs/packages/package-index-1998-10-12-2
There were two mule-base packages uploaded today. mule-base-1.23 is
poison, do not use it. mule-base-1.24 is O.K. When removing the old
mule-base watch out for two files which don't get installed with write
permission.
bbdb has been repackaged to include some .tex files that have been
omitted from previous packagings.
pcl-cvs has been updated with some bug fixes.
The other changed packages gnus, pgnus, mew, and zenirc were
repackaged.
XEmacs.rules has been updated.
Please give this a try and scream at me if anything goes wrong.