How can i play 3d games on my nokia 7100s-2????????
You can play them, if someone has first written/created such games for that phone model.
Look in Ovi Store ( http://store.ovi.com) or getjar.com for 3D Java games compatible with your phone.
Note that the 7100 Supernova does not have any kind of 3D graphics hardware acceleration, so 3D games may not look good or perform well on that model.
Welcome to Flash Lite Development Dibo ! Petrib's answer will surely help you.This Discussion Board actually concentrates on development related issues, you might find more end-user problems related Dibo better suited for your query. Here's link for one: http://discussions.europe.nokia.com/