Add SubItems To Listview

Hello,

In my program I have a listview-component (property set on vsReport)
with 4 columns.
Now I want to fill the columns with data from a textfile.
The textfile looks somewhat  like this :  a
                                        b
                                              c
                                              d

                                                        e
                                                   f
                                             g
                                                   h

My question is : how do I get "a" in the first column, "b" in the next
column, "c" in the third column and "d"  in the fourth column.
Then "e" in the first column at the second line of the listview,
etc...

Thanks...