I used the installer version on my Windows Vista machine and things went okay until after restart. I got a .dll error (continuously) and localhost wouldn't come up.
So after a little research, I went to the Startup Folder, deleted the mysql/php/apache? I fogot the actual name of it) shortcut there and restarted. Everything has been ducky ever since!!
Thanks to you all for letting the community have this wonderful program and those that post their problems and solutions!