G'day Valdiviano,
On the CASA website, you can download the Flight Instructor manual. It replaced the little blue book PUB45 which you might have used during you training.
If you still have all your old long and short briefs, they should be fine. It just matter of making friends with the whiteboard and Demo, Direct, Monitor from the right hand seat again.
You have probably noticed a shortage of expierenced instructors.
Good luck
MM