Well I ran into a little problem with the building. When I tested out the pieces initially everything was working fine, but I just needed to adjust some pieces so they lined up properly since the snap to grid in sandbox doesn't match the one in sketchup 7.
So I made all the pieces separate components and pieced them together in sketchup. I realined them, then separated them again and re-exported. Now amost all of the floors are not entirely solid. It is like the player sinks into them. I can't seem to figure this out. Otherwise the building layout is complete and quite impressive (for me anyway ) when put together.
I'm gonna run some tests to see if I can figure out a solution, but I might have to remake the floors.