64 combo boxes???? You sure?
My VB is rusty sorry (I am a c# person but it is the same in .net other than syntax mainly) so i will give you the pseudocode.
On the combo2 selected index event handler do a Select Case statement for each value possible and depending on the value populate the correct textbox with the combo1 text.
eg
Case "Phones":
TxtPhones.Text = Combo1.Text
Case "Moves"
TxtMoves.Text = Combo1.Text
The same applies with combo4 and use combo3 text for the textbox
Does that help?
Unsolved 
