Hell, pretty much every hospital I've worked in for the last two years has gone to Avagard (the alcohol based hand "wash"). Its obviously good to know how to do the old fashioned way but as BD notes, its not that hard.
Three basic rules...
1) always scrub (with Avagard or real brush and soap) longer than the attending and/or resident. That way they can't say you didn't wash long enough.
2) wash from the fingers down the arm to the elbow; if you contaminate yourself, start over; let the dirty water drip off your elbows and open the OR door with your elbow or kick it open (for us real cowboys).
3) don't hold your hands up high like you see on tv...you are likely to contaminate yourself.
The scrub nurse will put the gown on you. Its good to know how to gown yourself, but I wouldn't worry about it now. You can touch anything between the midchest and midabdomen. You will see the attendings and residents cross their arms with their hands under the axilla; do not attempt this, it is an advanced move and the scrub nurse will penalize you for it.
Do not touch the inside of the glove with the outside. If you tear a glove, hold your hand out, palm up, for the circulator to remove the glove and allow the scrub nurse to reglove you.