There isn't a free copy of the rules, but you might be able to borrow a book from someone. If you wanted to buy one, it sounds like we have a new rulebook coming out in March. It might be worth waiting until then, as there will be some heavy changes in it.
Events usually run from Fri evening to Sun morning. We have one of these pretty much every other month. There's a schedule under the announcements forum. Events are generally held at Millersylvania camp site (exit 95 off 1-5) of Camp Shepperd (Over by Mt. Rainier.)
There are also gamedays, which happen on either a Saturday or a Sunday, and run for 4+ hours. The majority of these take place at Hamlin park in Seattle. Gamedays are usually planned a couple weeks before they happen. We seem to average one a month.