Three Crazy Fonts

[Angela Partain]

Hello all.  I have pinpointed my problem, thanks to the collective efforts and assistance of everyone who has so graciously given of their time.
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1. My problem: 
    a. When I type $\mathbb{R}$, I get "Can't find font - msbm10"
    b. When I type $\mathcal{R}$, I get "Can't find font - cmsy10"
    c. When I type $\triangleq$, I get "Can't find font - msam10"

If I can just get these three fonts working, my problem is solved and I will leave everyone alone for a while (hopefully a LONG while!)
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2.  The tfm files for all of the three fonts are listed in:
                c:\yandy\fonts\tfm\nontext
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3.  None of them are listed in c:\windows\fonts
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4. My question:  How can I get DviWindo to recognize these fonts?  Are they installed or not? If not, how can I install them? I tried copying them to c:\windows\fonts, and it will not allow me to do this (I am using WinXP).  I tried saving them into the c:\windows\fonts folder from ctan, and it seems to work, but when I look into the Win Explorer file, the fonts are not there. 
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5.  Is the problem in my preamble?  I've copied the relevant parts below:

      \documentclass[twoside,10pt]{article}
      \usepackage[intlimits]{amsmath}
      \usepackage{amsbsy}
      \usepackage[psamsfonts]{amsfonts}
      \usepackage[psamsfonts]{amssymb}
      \usepackage{amstext}
      \usepackage[mtbold,noTS1,uprightgreek]{mathtime}
      \usepackage{times}
      \usepackage[LY1]{fontenc}

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6.  Is the problem in my dviwindo.ini file?  I've copied the relevant parts below:

[Environment]
EditorDDE=PFE32;Editor;[FileOpen(%s)];[EditGotoLine(%d,0)];[ComeToForeground()]
ENCODING=texnansi
TEXFORMATS=C:\yandy\YANDYTEX\FMT
VECPATH=C:\yandy\FONTS\ENCODING
PREPATH=C:\yandy\DVIPSONE
SUBPATH=C:\yandy\DVIPSONE\SUB
PSPATH=C:\YANDY\TEXINPUT;C:\YANDY\PS
PSFONTS=C:\WINDOWS\fonts
TEXPOOL=C:\yandy\YANDYTEX\FMT
TEXINPUTS=C:\YANDY\TEXINPUT;C:\YANDY\TEX\BASE\\
PLAIN=C:\YANDY\TEXINPUT;C:\YANDY\TEX\BASE\\
AMSTEX=C:\YANDY\TEXINPUT;C:\YANDY\TEX\BASE\\
TEXEDIT=C:\yandy\pfe\pfe32.exe /g %d %s
YANDYPATH=C:\yandy
TEXFONTS=C:\YANDY\FONTS\TFM\TEXNANSI\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\TEXNANSI\
TEXNANSI=C:\YANDY\FONTS\TFM\TEXNANSI\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\TEXNANSI\
TEX256=C:\YANDY\FONTS\TFM\CORK\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\CORK\
ANSINEW=C:\YANDY\FONTS\TFM\ANSINEW\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\ANSINEW\
STANDARD=C:\YANDY\FONTS\TFM\STANDARD\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\STANDARD\
TEXTEXT=C:\YANDY\FONTS\TFM\TEXTEXT\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\TEXTEXT\
CUSTOM=C:\YANDY\FONTS\TFM\CUSTOM\TFM;C:\YANDY\FONTS\TFM\NONTEXT\;C:\YANDY\FONTS\TFM\CUSTOM\
LATEX=C:\YANDY\TEXINPUT;C:\YANDY\TEX\BASE\\;C:\YANDY\TEX\LATEX2E\\
[Applications]
Help|F1=C:\yandy\dviwindo\dviwindo.exe C:\yandy\dviwindo\dvi_help.dvi
DOS (Full Screen)|F2=C:\yandy\dviwindo\dosprmpt.pif
DOS (Windowed)|F3=C:\yandy\dviwindo\doswinpt.pif
Notepad|F4=C:\WINDOWS\notepad.exe @.tex
-> Notepad|C-F4=$Window(Notepad...)
Separator1=Line
PFE Editor|F11=C:\yandy\pfe\pfe32.exe @.tex
-> PFE Editor|C-F11=$Window(Programmer's File Editor)
Separator2=Line
DVIPSONE|F12=C:\YANDY\DVIPSONE\DVIPSONE.BAT -d=LPT1 *
Separator3=Line
iniTeX|F9=C:\YANDY\YANDYTEX\INITEX.BAT "Format Source File|plain" "Format Menu Name|TeX"
Separator4=Line
plain TeX|F5=C:\YANDY\YANDYTEX\TEX.BAT @.tex
AMSTeX|F6=C:\YANDY\YANDYTEX\TEX.BAT +amstex @.tex
LaTeX 2e|F8=C:\YANDY\YANDYTEX\TEX.BAT +latex @.tex

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7.  I've tried to list all the information that may be needed.  Please note that while I am very computer literate, a lot of this tex information is a little difficult for me to understand.  I inherited my typesetting job (for a very reputable publishing firm) from an engineer, who trained me in how to use Y&Y and Latex, but all the technical part I've had to learn on my own (mostly through problems like I'm having now).  I have studied and researched more in the past two days than I have in a long time, and I still can't get these THREE crazy fonts to work.  I am very grateful for this Y&Y Support Group, and thanks to Mimi, Robin, Joels, and Christina for all your help! 
Very best regards,
Angela