OK, if I follow your set up correctly, try:
<TABLE style="BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 2pt; PADDING-RIGHT: 2pt; FONT-FAMILY: Calibri,Arial; FONT-SIZE: 11pt" border=1 cellSpacing=0 cellPadding=0><COLGROUP><COL style="WIDTH: 30px; FONT-WEIGHT: bold"><COL style="WIDTH: 38px"><COL style="WIDTH: 75px"><COL style="WIDTH: 204px"><COL style="WIDTH: 128px"><COL style="WIDTH: 176px"><COL style="WIDTH: 153px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD></TD><TD>A</TD><TD>B</TD><TD>C</TD><TD>D</TD><TD>E</TD><TD>F</TD></TR><TR style="HEIGHT: 15px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"></TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"></TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Meetings February/March 2010</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Meetings May 2010</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Meetings July/August 2010</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Meetings October 2010</TD></TR><TR style="HEIGHT: 15px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD style="FONT-FAMILY: Arial Narrow; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Name</TD><TD style="FONT-FAMILY: Arial Narrow; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Last Meeting</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">25th Mar</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">11th May</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">22nd Jul</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">12th Oct</TD></TR><TR style="HEIGHT: 15px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD style="FONT-FAMILY: Arial Narrow; FONT-SIZE: 10pt">Bob</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt">22nd Jul</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Aps</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Yes</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Yes</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"></TD></TR><TR style="HEIGHT: 15px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD style="FONT-FAMILY: Arial Narrow; FONT-SIZE: 10pt">Terry</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt">22nd Jul</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Yes</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Aps</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Yes</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"></TD></TR><TR style="HEIGHT: 15px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD style="FONT-FAMILY: Arial Narrow; FONT-SIZE: 10pt">Frank</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt">25th Mar</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Yes</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">RES</TD><TD style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">RES</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"></TD></TR></TBODY></TABLE>
Formula in B3 is:
=INDEX(C$2:F$2,,MATCH(2,1/(C3:F3="Yes"),1))
Which needs committing with Ctrl+Shift+Enter, and can then be dragged down...
Matty