Come back and post any time you like, Jacqui -- there's nearly always someone around. And if you make a post in your own blog (see the My Blog link in your profile), it will show up on the 'All posts' page where everyone can see it (if you have your blog set as public, that is).
If you want to read the 'All posts' page, you can find it here: http://www.bcna.org.au/node/all/blog/network. I find that the easiest way to catch up on what everyone's doing.
Best wishes for tomorrow -- let us know how it goes.
--Di