how to reach zhengzhou railway station from international airport....tel me every means i.e. bus etc

From the airport, you can take the shuttle bus Line 2 or 3 to reach the railway station.
Or you can take a taxi to reach directly, but the fare must be high.

one more thing i wanna know that what are the areas(tourist must see) to visit at zhengzhou and also what are the tourist places in china which are actually have the WOW! symbol.

thanks ...actually i am thinking to stay at hotel jj inns near railway station..is it gud or is there any other gud option in less fare

For the hotel, I think you may mean Jinjiang Inn, right?
If so, I can tell that hotel is comparatively cheap with a pretty well condition.
For the places to visit, I think the Yellow River Scenic Area, Shaolin Temple and Yin Xu attractions are suggested for you.