Hint 1

lstbox.items.add("dylanbooth")

if btnTrue = false then
lstbox.visible = false
else
lstbox.visible = true
end if

Hint 2


msg = "Metres to centremetres: " & vbNewLine & _
"metres: " & FormatNumber(metres) & vbNewLine & _
"cm: " & FormatNumber(cm)

' this shows that you can change the format of an integer so it makes sense.