I need urgent help! It's an emergency!

If you've been to the Twilight vs Harry Potter spot, then 당신 must have noticed the 아이콘 is like mashed up (best way I can describe it at the moment. sorry. I'm starting a Linkin Park Vs 파라모어 spot, but I don't know how to mash pictures together like that for 아이콘 또는 banners! Do any of 당신 know how?