Ann: Share Purchase Plan Opens, page-5

All good Option take a bit of getting use to.....The free option will cost you 1.5c to exercise into a ordinary share by the exercise date otherwise you lose it....So if you buy x 2 shares @ .6c = 1.2c then if you exercise the free option it will cost you 1.5c so 1.2c + 1.5c = 2.7c for a total of 3 shares!
But right now you could buy x 4 shares @ .6c = 2.4c and you have more shares and it's total cost is lower!
The other curly thing is there is other XTC options listed on the ASX under the code XTCO and they are current selling around .3c with the exercise price of .3c so .3c +.3c = .6c for 1 share as opposed to the free XTCOA option which will cost you 1.5c to exercise for 1 share.

That's the way I understand it....but more than happy as stated before to have the smarter people on here correct me if i have it wrong?

Hope this helps