After Effects 4K Title & Animation Issue

Hello,

I am having an issue implementing titles for my project in PP that were created in AE. I had someone make me title animations and logo animations for me. He designed them for 1920X1080, but my footage and sequence is 4096 X 2160, and now he's on vacation for three weeks in Europe.  I have all the assets and project files for this project. I tried to do a simple change in the sequence settings of the comps but that didn't solve anything. I also tried scaling up the layers but then the animation paths got messed up. How can I re-size the titles so they match the sequence correctly?

Thanks,

Ben

AE - 11.0.2.11

MAC OS X - 10.8.3

4K RED Footage - 4096 X 2160