VGA DISPLAY on to the NIOS II CYCLONE III evaluation Board

It would be better if you make your problem bit more clear. I am not getting exact idea whether you have hardware code ready for LCD controller or software code which drives LCD using any controller?

There are ready reference available in setup package of NEEK, you can look at few examples given in package, from where you can start looking at how reference system works and find out what you need to do.