XEmacs no longer looks into a 'site-lisp' directly by default.
A good place to put 'site-start.el' would be in
$prefix/lib/xemacs/site-packages/lisp/
-
-Finding the right packages
---------------------------
-
-If you want to find out which package contains the functionality you
-are looking for, use M-x package-get-package-provider, and give it a
-symbol that is likely to be in that package. eg, if some code you
-want to use has a (require 'thingatpt) in it, try doing
-M-x package-get-package-provider RET thingatpt , which will return
-something like: (fsf-compat "1.06").