Yes sorry about that, now that I read your OP back I see you are looking to the left in the table of task descriptions. Vlookup will only look to the right. If I am understanding right you could use Index/Match. You have a table of task descriptions along with manhours;
Example
Sheet2
<TABLE style="PADDING-RIGHT: 2pt; PADDING-LEFT: 2pt; FONT-SIZE: 10pt; FONT-FAMILY: Arial,Arial; BACKGROUND-COLOR: #ffffff" cellSpacing=0 cellPadding=0 border=1><COLGROUP><COL style="FONT-WEIGHT: bold; WIDTH: 30px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"></COLGROUP><TBODY><TR style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center"><TD></TD><TD>F</TD><TD>G</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">1</TD><TD style="TEXT-ALIGN: center">Man-Hrs</TD><TD style="TEXT-ALIGN: center">Task Desc</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">2</TD><TD style="TEXT-ALIGN: center">0.5</TD><TD style="TEXT-ALIGN: center">Mow</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">3</TD><TD style="TEXT-ALIGN: center">1.2</TD><TD style="FONT-FAMILY: Verdana; TEXT-ALIGN: center">Laundry</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">4</TD><TD style="TEXT-ALIGN: center">3</TD><TD style="FONT-FAMILY: Verdana; TEXT-ALIGN: center">Vacumn</TD></TR></TBODY></TABLE>
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Then in column A you select a task and in column B the manhours fill in;
Example
Sheet2
<TABLE style="PADDING-RIGHT: 2pt; PADDING-LEFT: 2pt; FONT-SIZE: 10pt; FONT-FAMILY: Arial,Arial; BACKGROUND-COLOR: #ffffff" cellSpacing=0 cellPadding=0 border=1><COLGROUP><COL style="FONT-WEIGHT: bold; WIDTH: 30px"><COL style="WIDTH: 69px"><COL style="WIDTH: 64px"></COLGROUP><TBODY><TR style="FONT-WEIGHT: bold; FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center"><TD> </TD><TD>A</TD><TD>B</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">1</TD><TD style="TEXT-ALIGN: center">Task Desc</TD><TD style="TEXT-ALIGN: center">Man-Hrs</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">2</TD><TD style="TEXT-ALIGN: center">Mow</TD><TD style="TEXT-ALIGN: center">0.5</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">3</TD><TD style="FONT-FAMILY: Verdana; TEXT-ALIGN: center">Vacumn</TD><TD style="TEXT-ALIGN: center">3</TD></TR><TR style="HEIGHT: 17px"><TD style="FONT-SIZE: 8pt; BACKGROUND-COLOR: #cacaca; TEXT-ALIGN: center">4</TD><TD style="FONT-FAMILY: Verdana; TEXT-ALIGN: center">Laundry</TD><TD style="TEXT-ALIGN: center">1.2</TD></TR></TBODY></TABLE>
<TABLE style="FONT-SIZE: 10pt; BORDER-LEFT-COLOR: #00ff00; BORDER-BOTTOM-COLOR: #00ff00; COLOR: #000000; BORDER-TOP-STYLE: groove; BORDER-TOP-COLOR: #00ff00; FONT-FAMILY: Arial; BORDER-RIGHT-STYLE: groove; BORDER-LEFT-STYLE: groove; BACKGROUND-COLOR: #fffcf9; BORDER-RIGHT-COLOR: #00ff00; BORDER-BOTTOM-STYLE: groove"><TBODY><TR><TD>
Spreadsheet Formulas</TD></TR><TR><TD><TABLE style="FONT-SIZE: 9pt; FONT-FAMILY: Arial" cellSpacing=0 cellPadding=2 border=1><TBODY><TR style="FONT-SIZE: 10pt; BACKGROUND-COLOR: #cacaca"><TD>Cell</TD><TD>Formula</TD></TR><TR><TD>B2</TD><TD>=INDEX($F$2:$F$4,MATCH
(A2,$G$2:$G$4,0),1)</TD></TR><TR><TD>B3</TD><TD>=INDEX($F$2:$F$4,MATCH
(A3,$G$2:$G$4,0),1)</TD></TR><TR><TD>B4</TD><TD>=INDEX($F$2:$F$4,MATCH
(A4,$G$2:$G$4,0),1)</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
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Just change the ranges in the formulas to match the extent of your table. Hope this is more what you were in search of. If the table, in column F/G was flipped; that is, Task Desc in F then the vlookup would work.