Easy Collision

I have 4 images going down a form, and player Image. I need to know how to make a collision thing

Thanks

http://www.google.com/search?q=vb+collision+detection

two "things" collide horizontaly if

thing1.left < thing2.right AND thing1.right > thing2.left
AND
thing1.top < thing2.bottom AND thing1.bottom > thing2.top

Marco