Be confident, don't second guess yourself as long as you've pout in the hard yards studied all year you'll be fine and if you've left it up to the last minute well then your screwed lol nah with Winstions careful guidence and my help along the way you all should be fine just believe in your self and really it's only the HSC who cares have fun with it
oh and one more point DON'T NAME BRANDS unless they ask for an example or just use it for an example e.g Sample Question: What would be the best program to write a standard letter in? DON'T SAY microsoft word, say a word processing program e.g Microsoft wrod, i ahve noticed alot of u name brands when answering questions please just don't do it.
But i'll end on a positive note
Really the I.T exam is just using your commen sense especially in section III with just a few fancy technical words and some jargon thrown in so as long as u have commen sense you'll be great