Random image help

I am making an activity, where sheep pop out, from 1 to 100. They are all the same sheep and look the same now my question is:

I would like to know how to make a random amount of sheep pop up on the form. For example they click the start button and a random amount of sheep pop-up? They then must count how many sheep there are. How would I do that. I know its something to do with the int(rnd*100)+1 formula.
So far I have a picture box, but when I press f5 i see the picture box and its not supposed to show until they press the start button to make random sheep. So please help.

Thanks

It does not work. I currently have 4 pictures of sheep and they are conrol arrays, as well as a command button. So if you can fix this i would be very appreciative thanks!

Private Sub Command1_Click()
numsheep = Int(Rnd * 4 - 1) + 1
For x = 0 To numsheep
Sheep.Image(x) = thesheep.Image
Next x
End Sub

Change Sheep.Image(x) = thesheep.Image
to set Sheep.Image(x) = thesheep.Image..

Isnt that the same thing?

no.. at least not in VB6 (it is in VB.NET). in VB6 you use the "set" keyword to set the property of an object = to another object

Classic explain!!
Thank u..