Easy way to tell ifyou seized your engine is to crawl under the front, get a 24mm wrench and crank the engine over manaly off the crank. If you cant budge it (You do need to apply some pressure to get it to move) Then your engine is seized.
When you try to start it do you hear the starter click? Does the engine crank at all?
Did you check the oil level, positive there is no oil in the engine.