Wow... I feel so sorry for that poor dog after watching the video!
Emily: forget about letting your friends work your dog.
Your dog does NOT need to be "put in her place". She's clearly submissive and putting up with the harsh unfair corrections.
We can't explain how to train a dog in a few paragraphs here, so the best thing would be to read through the leerburg website (not the discussion board) and study Ed Frawley's articles on the matter.
Here, read his philosophy on dog training. It's a good place to start:
http://www.leerburg.com/philosophy.htm
For now, forget about the corrections.
You need to build up your bond with her and get her to trust you and to enjoy working for you.
What motivates Ollie? Food? Toys?
Use the treats to guide her into the sit, or down, or whatever you want her to learn. Get rid of the prong during training (use it on walks only if she pulls a lot, but don't jerk her around anymore).
It takes a lot of repetitions done in short fun sessions (over several weeks) for a dog to really be solid on a command. Even once they're solid, the dog should still be happy in the work. Your dog looks miserable.
As for the dog aggression, keep her away from other dogs!
Spend that time playing with her, teaching her (remember, short fun sessions - no more than 5 minutes at a time!), walking her, grooming her.
Why would you want her to bond with other dogs? Especially as she gets so worked up to the point of aggression?
I agree with the others who have posted already.
Stop with the corrections and focus on making the training fun and happy for her. Build your bond with this dog.
Think of training as a game. Say "sit", gently guide her into a sit, and as soon as her butt is on the ground, say YES!!! like she just did the best thing in the world and give her a treat.
Do this throughout the day for a couple of weeks.
Move onto the down the same way. Always exhuberant praise and a reward for doing the right thing. See how fast she learns when you do it that way, and how eager she'll be to please you.
Once you figure out a way to keep her working in drive (very motivated) you can stop giving the reward for each good behaviour. Make it a random reward so she never knows when it's coming.
Corrections come WAYYY later!!
Don't worry about that now, just focus on making her happy and make her lessons a lot of fun for her.
By the time she's ready for the correction and distraction phases of training, you'll have time to have read and studied Ed's articles on the Leerburg website and you'll know how to proceed.
Your friend doesn't have a clue what he's doing - tell him to read the site too!!
Good luck and please go easier on that poor dog. Give her a break, she doesn't know what you want from her yet - the ""training"" shown in that video is nothing but abuse!!!!!!!!!!!!!