problem in upgrading project from vb6

[plsanswer]

hello,

i am upgrading a project developed in vb6 to vb.net..
a vsflexgrid control is used in vb6 project and has a code line
grdArchivedList.Cell(flexcpBackColor, grdArchivedList.Row, 0, grdArchivedList.Row, 7) = vbYellow

in upgarde version an warning is displayed..
'UPGRADE_WARNING: Couldn't resolve default property of object grdArchivedList.Cell(). Click for more: 'ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?keyword="6A50421D-15FE-4896-8A1B-2EC21E9037B2"'

what shud i do??
pls help