I think this will work for you:
Sub MoveComments()
On Error Resume Next
Dim rowCounter, place1 As Long
Dim rawComment, modComment As String
Application.ScreenUpdating = False
'Find the last row to use as a counter
rowCounter = ActiveSheet.Cells.SpecialCells(xlCellTypeLastCell).Row
Do Until rowCounter = 1
curComment = ""
ActiveSheet.Range("E" & rowCounter).Select
If IsEmpty(ActiveCell.Comment.Text) = True Then
curComment = ""
modComment = ""
Else
curComment = ActiveCell.Comment.Text
'OPTIONAL - remove the name of the commenter
place1 = InStr(1, curComment, ":")
modComment = Mid(curComment, place1 + 1, Len(curComment) - place1)
''''''''''''''''''''''''''''''''''''''''''''
End If
'Move to the right column and place the comment in the field
ActiveCell.Offset(0, 1).Select
ActiveCell.FormulaR1C1 = modComment 'Change modComment to rawComment to include name of commenter
'decrease counter
rowCounter = rowCounter - 1
Loop
Application.ScreenUpdating = True
End Sub