I use the following code to set the background color dynamically based on row selection:

.SetAll("DynamicBackcolor","ICASE(c_scrnbrow.date > DATE(), _VFP.GridForeRows, EMPTY(c_scrnbrow.number), _VFP.GridForeRows, c_scrnbrow.pos%2 = 0, _VFP.GridEvenRows, c_scrnbrow.pos%2 > 0, _VFP.GridOddRows)","Column")

In VFP 7 you do not have the ICASE() command, so you would have to use nested IIF() commands.