Hi!
I can get this done for you. Just to be clear on your requirement, you want the intro image replaced with another one? Could you please send me a screenshot of the intro image and also the image you want it replaced with? (There's a few images inside the .apk file you have uploaded)
Please confirm your exact requirement and send me the stuff I have requested. I could definitely get this done for you within a couple of hours.
NOTE: This is only valid if you send me what I have requested within the next 4 hours, and award me he project within that same time. It would be my bed time after that so, I cant give you a guarantee of getting it done within a couple of hours, if you fail to respond within that time.
Thanks,
Alex