your problem is;
Set Variable:"index" = "1"

every time it get to the frame it resets "index" to 1 so it will never be 3

you don't need;
Set Variable:"index" = "1"

has it will assume that it is zero

you just need

if (index < 2)
Go to and Play (1)
Set Variable:"index" = "index + 1"
End If

This should work

CheerZ
rosie