I'm using Excel 2003

If a cell in column A has a certain value, I would like that automatically
the cell (in the same row as the required value in column A) in column G is
set that it equals the value that is going to be entered in column E

So if I enter XX in cel A7 I would like that Cell G7 is set that it will
equal the value entered in cell E7

Who can help me?

Paul