For alignment related stuff, please refer to the following threads (that you can find through a search):
http://shift518.gom-host.com/showthread.php?t=14919&highlight=Alignment
http://shift518.gom-host.com/showthread.php?t=11911&highlight=Alignment
http://shift518.gom-host.com/showthread.php?t=11777&highlight=Alignment