diff --git a/yahtml.el b/yahtml.el
index 134470a..9d67637 100644
--- a/yahtml.el
+++ b/yahtml.el
@@ -1,6 +1,6 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; (c) 1994-2011 by HIROSE Yuuji [yuuji(@)yatex.org]
-;;; Last modified Mon May 16 15:49:38 2011 on firestorm
+;;; Last modified Mon Jan  9 14:09:47 2012 on firestorm
 ;;; $Id$
 
 (defconst yahtml-revision-number "1.74.2"
@@ -1022,8 +1022,8 @@
 
 ;
 ; Subject: [yatex:02849] Re: [yahtml] tilda in href tag
-; From: Masayasu Ishikawa <mimasa@sfc.keio.ac.jp>
-; To: yatex@arcadia.jaist.ac.jp
+; From: Masayasu Ishikawa <mimasa<at>sfc.keio.ac.jp>
+; To: yatex<at>arcadia.jaist.ac.jp
 ; Date: Mon, 31 May 1999 21:09:31 +0900
 ; RFC 2396 �� "2.4.3. Excluded US-ASCII Characters" �ɂ��ƁA�ȉ��̕���
 ; �͕K���G�X�P�[�v���Ȃ��Ƃ����܂���B
diff --git a/yatex.el b/yatex.el
index 616104c..3c1d8fa 100644
--- a/yatex.el
+++ b/yatex.el
@@ -2,7 +2,7 @@
 ;;; Yet Another tex-mode for emacs - //�쒹//
 ;;; yatex.el rev. 1.74.6
 ;;; (c)1991-2011 by HIROSE Yuuji.[yuuji@yatex.org]
-;;; Last modified Mon Jan  9 11:29:44 2012 on firestorm
+;;; Last modified Mon Jan  9 14:03:07 2012 on firestorm
 ;;; $Id$
 ;;; The latest version of this software is always available at;
 ;;; http://www.yatex.org/
@@ -1214,7 +1214,7 @@
 	(looking-at "\\\\left\\\\"))
       (insert "{\\right\\}")
       (forward-char -8))
-     ((save-excursion			;from matsu@math.s.chiba-u.ac.jp
+     ((save-excursion			;from matsu<at>math.s.chiba-u.ac.jp
 	(and (> (- (point) (point-min)) 6) (forward-char -6))
 	(looking-at "\\\\[bB]igl\\\\"))
       (insert
@@ -1332,7 +1332,7 @@
 	(looking-at "\\\\left"))
       (YaTeX-insert-inherit "[\\right]")
       (forward-char -7))
-     ((save-excursion			;from matsu@math.s.chiba-u.ac.jp
+     ((save-excursion			;from matsu<at>math.s.chiba-u.ac.jp
 	(and (> (- (point) (point-min)) 5) (forward-char -5))
 	(looking-at "\\\\[bB]igl"))
       (YaTeX-insert-inherit
@@ -1377,7 +1377,7 @@
       (looking-at "\\\\left"))
     (YaTeX-insert-inherit "(\\right)")
     (forward-char -7))
-   ((save-excursion			;from matsu@math.s.chiba-u.ac.jp
+   ((save-excursion			;from matsu<at>math.s.chiba-u.ac.jp
       (and (> (- (point) (point-min)) 5) (forward-char -5))
       (looking-at "\\\\[bB]igl"))
     (YaTeX-insert-inherit
@@ -1414,7 +1414,7 @@
       (looking-at "\\\\left"))
     (YaTeX-insert-inherit "|\\right|")
     (forward-char -7))
-   ((save-excursion			;from matsu@math.s.chiba-u.ac.jp
+   ((save-excursion			;from matsu<at>math.s.chiba-u.ac.jp
       (and (> (- (point) (point-min)) 5) (forward-char -5))
       (looking-at "\\\\[bB]igl"))
     (insert
@@ -1428,7 +1428,7 @@
      (concat
       "|" (buffer-substring (match-beginning 0) (- (match-end 0) 1)) "r|"))
      (forward-char -7))
-   ((save-excursion		; added by Jin <MAF01011@nifty.ne.jp>
+   ((save-excursion		; added by Jin <MAF01011<at>nifty.ne.jp>
       (and (> (- (point) (point-min)) 6) (forward-char -6))
       (looking-at "\\\\left\\\\"))
     (YaTeX-insert-inherit "|\\right\\|")
diff --git a/yatexmth.el b/yatexmth.el
index 09e3038..6f6141d 100644
--- a/yatexmth.el
+++ b/yatexmth.el
@@ -2,7 +2,7 @@
 ;;; YaTeX math-mode-specific functions.
 ;;; yatexmth.el
 ;;; (c)1993-2010 by HIROSE Yuuji [yuuji@yatex.org]
-;;; Last modified Fri Oct  7 15:53:34 2011 on firestorm
+;;; Last modified Mon Jan  9 14:11:08 2012 on firestorm
 ;;; $Id$
 
 ;;; [Customization guide]
@@ -802,7 +802,7 @@
 	  (setq list (cdr list)))
 	(setq lists (cdr lists))))))
 
-;;; ----- for AMS LaTeX (by matsu@math.s.chiba-u.ac.jp) -----
+;;; ----- for AMS LaTeX (by matsu<at>math.s.chiba-u.ac.jp) -----
 (defvar YaTeX-ams-paren-modifier
   '(("Biggl" . "Biggr") ("biggl" . "biggr")
     ("Bigl" . "Bigr") ("bigl" . "bigr")
diff --git a/yatexpkg.el b/yatexpkg.el
index a7bd686..bc3bca6 100644
--- a/yatexpkg.el
+++ b/yatexpkg.el
@@ -2,19 +2,19 @@
 ;;; YaTeX package manager
 ;;; yatexpkg.el
 ;;; (c)2003-2010 by HIROSE, Yuuji [yuuji@yatex.org]
-;;; Last modified Sat Sep 11 15:50:40 2010 on firestorm
+;;; Last modified Mon Jan  9 14:10:34 2012 on firestorm
 ;;; $Id$
 
 (defvar YaTeX-package-ams-envs
   (mapcar 'car YaTeX-ams-env-table))
 
 (defvar YaTeX-package-alist-default
-  '(("version"	(env "comment")		;by tsuchiya@pine.kuee.kyoto-u.ac.jp
+  '(("version"	(env "comment")		;by tsuchiya<at>pine.kuee.kyoto-u.ac.jp
      		(section "includeversion" "excludeversion"))
 
-    ("plext"	(section "bou"))	;by yas.axis@ma.mni.ne.jp
+    ("plext"	(section "bou"))	;by yas.axis<at>ma.mni.ne.jp
 
-    ("url"	(section "url"))	;by fujieda@jaist.ac.jp
+    ("url"	(section "url"))	;by fujieda<at>jaist.ac.jp
 
     ("fancybox"	(section "shadowbox" "doublebox" "ovalbox" "Ovalbox"))
     ("slashbox"	(section "slashbox" "backslashbox"))
@@ -23,7 +23,7 @@
     ("ascmac"	(env "screen" "boxnote" "shadebox" "itembox")
 		(maketitle "return" "Return" "yen")
      		(section "keytop") ("mask") ("maskbox"))
-    ("bm"	(section "bm"))		;by aoyama@le.chiba-u.ac.jp
+    ("bm"	(section "bm"))		;by aoyama<at>le.chiba-u.ac.jp
 
     ("alltt"	(env "alltt"))
     ("misc"	(section "verbfile" "listing"))