Is there a train from Hong Kong to Henan / Zhengzhou?

No direct train is available between the two places. If you wish to take them, I suggest you take one from HK to Guangzhou East Railway Station first. Then you can catch a train from this railway station to your destination.
There is the direct flight between the two cities.

i bought a flight from hong kong to ZZ city for £123 with china southern as the distance by train takes like 2-3 days i think... i need to know how to get to luoyang from ZZ... and where its best to stay to see shaolin temple and the longmen caves.. ive read there is a bus direct from the airport in ZZ to luoyong so i wouldnt have to get a bus or taxi to the train station, but im not sure if its true

ps my email is kevintenutahotmail.com if you have any useful info