From the "profile" link above: Stock Options* All Other...

From the "profile" link above:

Stock Options*

	Column 1	Column 2
0	All Other Compensation	A$30,262
1	Exercisable Options	48,418,169
2	Unexercisable Options	124,503,864
3	Total Number of Options	172,922,033

This shows that at the moment he can exercise only the top number of options - 48.4M.

The second number are available to him should the price hit the target - he would then have to pay for them.

And 30c /5 is 6c, not 5c - not that it's a huge difference.