center09.texを修正パック090201でタイプセットするとエラーになりました。
TEXMFLOCAL\tex\platex\miscに、emathのスタイルファイルやmultido.texと同.styを入れています。
何か足りないもの、古いものがあるのでしょうか？

This is pTeXk, Version 3.1415926-p3.1.10 (sjis) (Web2C 7.5.7) (format=platex 2008.8.3)  25 FEB 2009 21:20
\write18 enabled.
 Source specials enabled.
**center09.tex
(./center09.tex
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Babel <v3.8l> and hyphenation patterns for english, usenglishmax, ukenglish, ba
sque, bulgarian, coptic, welsh, czech, slovak, german, ngerman, danish, esperan
to, spanish, catalan, galician, estonian, farsi, finnish, french, irish, greek,
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manian, russian, slovenian, samin, uppersorbian, serbian, swedish, turkish, ukr
ainian, dumylang, nohyphenation, loaded.
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LaTeX Info: Redefining \] on input line 2667.
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LaTeX Info: Redefining \setlength on input line 75.
LaTeX Info: Redefining \addtolength on input line 76.
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LaTeX Info: Redefining \to on input line 1734.
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LaTeX Info: Redefining \mathstrut on input line 2680.
LaTeX Font Info:    Try loading font information for U+msa on input line 2730.

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LaTeX Info: Redefining \color on input line 141.
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Package: multido 2004/05/17 package wrapper for PSTricks `multido.tex', (HV/RN)


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 v1.41, 2004/05/18 <tvz>
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File: multido.tex 2004/05/18 v1.41 `multido' (tvz)
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(c:/usr/local/W32TeX/share/texmf-local/tex/platex/misc/ruby.sty)
(./center09.aux)
\openout1 = `center09.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for JY1/mc/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.
LaTeX Font Info:    Checking defaults for JT1/mc/m/n on input line 27.
LaTeX Font Info:    ... okay on input line 27.

! Missing number, treated as zero.
<to be read again> 
                   c
l.28 \maketitle
               
A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

)
! Incomplete \if; all text was ignored after line 28.
<inserted text> 
                \fi 
<*> center09.tex
                
The file ended while I was skipping conditional text.
This kind of error happens when you say `\if...' and forget
the matching `\fi'. I've inserted a `\fi'; this might work.

! Emergency stop.
<*> center09.tex
                
*** (job aborted, no legal \end found)

 
Here is how much of TeX's memory you used:
 9638 strings out of 494374
 101200 string characters out of 1170793
 287644 words of memory out of 1500000
 12887 multiletter control sequences out of 10000+50000
 15174 words of font info for 62 fonts, out of 2000000 for 2000
 678 hyphenation exceptions out of 8191
 41i,8n,28p,287b,286s stack positions out of 3000i,500n,5000p,200000b,5000s
No pages of output.

▼関連発言
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└◆7990:センター試験でエラー [Kay] 02/25 21:27
　└◆7991:Re:センター試験でエラー [tDB] 02/25 22:13
　　├◆7992:Re[2]:センター試験でエラー [Kay] 02/25 22:39
　　└◆7993:Re[2]:センター試験でエラー [Kay] 02/26 02:09<-last