MacBook Pro water damage

I spilt a cup of tea over my MacBook (MB) pro (gutted) and it promptly stopped working, wouldn't turn on and the fan wasn't turning over (I have done this before with wine). So I have received my new MB and I thought I'd try turning on the old one as I'm halfway through my Masters dissertation, so thought I would see if there was anyway of getting the information from the old MB onto the new one. So it has turned on but my tracking pad is not working. The pointer appears to be stuck in the top left hand corner. I've tried to do S+Command+? so the top bar highlights and managed to close down the programs. However what I need is a way to get into migration assistant to move the information onto my new MB. I appreciate the old MB is knackered and the insurance are coming to collect it this week. Just wondering if anyone knows of a way to click the migration assistant option?