Getting to be an Usher is not an easy task - especially on Broadway. I used to be good friends with the president when I worked with the Shuberts, but I don't have her contact info anymore. Go directly to the union - look the address up in the phone book, or next time you're at a show, ask them where the office is. Surely it's somewhere in the midtown area. But remember - it's really really hard to get into Ushering. Most of those old women have been doing it for years and get very cutthroat about it and don't like newcomers - they're VERY strange that way. If you do decide to go find the office, be warned that you will have to work all 8 performances, unless that make you a sub or floater in the beginning. That's why I had to stop working with the Shuberts - the all 8 performances + full time school wasn't working. Also, beginng ushers get paid about $40 per performance, plus a few extra dollars in cash if you have inserts.
"If you are going to do something, do it well. And leave something witchy."
-Charlie Manson