Go to
www.psxcopyworld.co.uk/
Look under tutorials and then boot methods and you will find the appropriate answers to neo 2.2 and dvd's etc.
A simple way to i d your ps2 model is this.
Pull of the expansion bay cover, if it's made of plastic and thin metal strip it's a v4 board inside .
If it's just plastic then it's a v5 board.
There are other checks involving screws and stuff but this just seems a quick easy method.
Finnally allthough i personnally haven't got one the pioneer ao3 seems to be everybodies choice at the moment.
I say at the moment because the word on the lines is that this year will see many more dvd writers come on to the market with even better specs and prices.
If you can waite awhile it might be worthwhile.
Hope this helps, let me know how you go on.
ARGO.