Hint: Just use f.e. 10 iv's and label's and reuse them when you scroll:
F.e.
Label1
2
3 --> first visible Label, etc.
4
5
6
7
8 --> last visible Label, etc.
9
10
ScrollUp:
2
3
4 --> first visible Label, etc.
5
6
7
8
9 --> last visible Label, etc.
10
Label1 (repositioning after Label #9)