OK, I thought so. Spring has many many projects, so when you say Spring you are saying everything that Spring creates, including Spring Web Services, Spring JMX, Spring JMS, Spring Remoting, Spring Security, Spring AOP, Spring Framework, Spring Batch, Spring Integration.
And, actually every single one of them don't work directly with Tiles. Tiles is in conjunction with
jsp pages, and not even that, but to use it with Spring MVC, is the exact same way you use it if you were just using JSP and
Servlets. That is why you won't really find anything specifically that states how they "work together"
Good Luck, here are some links I found on Google for you.
http://www2.lifl.fr/~dumoulin/tiles/tilesAdvancedFeatures.pdf
http://groups.google.com/group/javawug/browse_thread/thread/54228c71beb3574a?pli=1
Mark