xemacs

I'm trying to use the following mode in xemacs 21.4:
http://turing.ubishops.ca/home/bruda/emacs-prolog/

My problem is that the hotkeys doesn't seem to work (C-c C-d for
debugging e.g.)
, but the coloring is ok, and the function menu appears with my
predicates.

I'm also not sure which file should I append these lines to: the
init.el or the prolog.el (actually I tried both, but no real
difference)

(((getenv "EPROLOG")
(eval
(getenv "EPROLOG")))
(eclipse "eclipse")
(mercury nil)
(sicstus "sicstus")
(swi "c:/Program Files/swi_pl/bin/plcon.exe")
(t "prolog"))



I thought that they should go to the end of init.el, as the
installation guide previously prompted to byte-compile the prolog.el,
but I got some warnings/errors, but when put in prolog.el re-byte-
compile, no warnings, but still no hotkeys
.