pginstaller - pginst: Use MSXML4 as it doesn't require office.

Log Message:
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Use MSXML4 as it doesn't require office.

Tags:
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REL8_0_STABLE

Modified Files:
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pginst/util:
validatetrans.vbs (r1.4 -> r1.4.2.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/util/validatetrans.vbs.diff?r1=1.4&r2=1.4.2.1)