I got it to work. Someone suggested increasing the memory allocation to 3000K I did it and the installer worked fine. I don't know why it said the installer was corrupt it should have said there was not enough memory.

One thing though has anyone noticed with LW 2.0 when you chceck the stats that it says there are only 3 or 4 other users online with you? This is no matter how long you stay online. When I check the stats on 1.8 it tells me hunderds and thousands are online at the same time. So right now I'm sticking to 1.8. Is it just me or am I doing something wrong?