Hi Steve,
Make sure you get there about 30-45 minutes early. The line gets long, quick.
Bring along original copies and all the forms you submitted with your citizenship application, your passport(s) (old and new), any visas (or other travel docs), your PR card, and another piece of photo ID (e.g. AB identification or driver's license). You don't need to bring any photos along. The test takes about 30 minutes (it's not hard if you have a good understanding of the Discover Canada book - make sure you go through it and study).
It looks like you said you were in Edmonton (on your above comment). Your test is in a room on the first floor of the Canada Place building (pink building) - just ask the security where the room is (kinda tricky to find - but it's on the first floor). After your test is over, you walk to another area down the hall to talk to an immigration officer. They have your file but they may ask to see originals (your citizenship application had photocopies).