Recently took mine and passed with a 98 on the restricted and a 88 on the non restricted.
For the written PAL, just know most of the basics for long rifles/shotguns, shot size, shell size, etc. if a certain round (ie 303 British) is usable by a different type (303 Savage), what distance is a bullet still dangerous, etc. So long as you read the book and have general knowledge about firearms, you should do fine.
For the practical PAL, I had to show my ACTS and PROVE, show how you traverse an obstacle with a firearm (I got a stream), show the carry stance and kneeling position. Again keep your finger off the trigger and watch where you point it. Not sure what the general opinion is on pointing it at the ground but ask your instructor if that's fine with him.
For the written RPAL, most of the same stuff as the PAL, only for handguns.
Practical, just PROVE and ACTS, how you'd store a weapon, etc stuff like that.
Again just read the books and have a basic knowledge of firearms and firearms safety. You'll do fine.