I'm sure you'll be fine :-)

Just make sure you are reading the latest code.

The best way is to setup Git on your box and do a 'git clone' on my repo. Then each time before you sit down you can just type 'git pull' and it will be updated.

Feel free to talk with Aaron about understanding it and implementation details etc. I'll send you his gmail address so you can chat with him. I think he has it pretty under control these days :-)