Basically wrote the shares off as zero. No chance of getting...

Basically wrote the shares off as zero. No chance of getting anything for them. Similar principal used if you were to ever have a asset lost or destroyed and the value is written down to zero.

If and when it does relist (i highly doubt it seeing the light of day again) i would then need to declare it as income in the financial year when i sell.Paying tax on a entire lot as my cost base will be effectively zero. basically i've crystallized my loss. 

My situation is a bit diff as i day trade a bit and im classified as running a business enterprise with my day trading. So all profits and losses are taxed accordingly and im not entitled to the cgt discount if i was a 'investor".

This is not fin advice and you should seek independent advice.