Problem is there isnt any markings on the turbos to confirm or deny they are CT20's, so i took off the turbine and compressor housing to measure the wheels:-
Compressor inlet:

Compressor outlet:

Turbine inlet:

Turbine outlet:

I found this link, seems to confirm but would like some input from you knowledgeable fellas!!
http://www.turbosupras.com/pages/en/pages/technical/CT20%20turbochargers.htm