The code is some times nested up to 8 levels or maybe more. In almost every style guide you will read that you should not use more then 3 or maybe 4 levels. Instead try to use sub method calls. This makes things much easier to read and understand.

Also you can sometimes limit nesting with reversing the condition.

Instead of saying:

If example = True Then
If example2 = True Then
...... VERY LONG CODE LIST.....
end if
end if

you can say:

If example = False Then
return
end if
If example2 = False Then
return
end if
...... VERY LONG CODE LIST.....


Don't know the exact syntax but I hope you understand my intention.