Ann: Exercise of 6.5c Listed Options - Appendix 3B, page-13

Unless when you say you've been given them you mean for free, and even then they're more valuable to be sold as options (i.e. as options 1000 * .035 = 35 or options converted to ord shares: 1000 * (.077 - .065) = 12, assuming you have an exercise price of 6.5 cents), you're honestly better off keeping them as options for now. I'm sure someone who is familiar with options will let you know, I know of options I don't know the exact process to exercise them (especially not on commsec). Wait until the share price is higher before you exercise them, it is not worth it right now.