Cannot find sqpe+6 in Xemacs

[Sundar Dorai-Raj]

Hi,
   I just got a new notebook with Windows 2000. I installed Xemacs 21.4 
(patch 11) after being a long time Emacs user. I also installed ESS 
through the menu (Tools -> Packages -> etc.) and modified my init.el 
file to have the following lines:

(require 'ess-site)
; carry-over from my .emacs file - don't really know what it means
(setq-default inferior-S+6-program-name 
"C:/progra~1/Insightful/SPLUS62/cmd/Splus")
(setq-default inferior-Sqpe+6-SHOME-name "C:/progra~1/Insightful/SPLUS62")
(setq-default inferior-Sqpe+6-program-name 
"C:/progra~1/Insightful/SPLUS62/cmd/Sqpe.exe")
; java.graph stuff
(custom-set-variables '(inferior-ess-start-args "-j"))

I also changed my PATH environment variable to include both R-1.8.1 and 
S-PLUS 6.2 in my path. When I open Xemacs and type

M-x R

R starts fine. However, when I type

M-x Sqpe+6

I get a message in the minibuffer saying [No match].

Anybody know how to fix this?

Thanks,
Sundar