I originally posted a message because I could not get this working. However, it does not seem to have ever reached the mailing list.
I have now solved my problem. The TilesViewHandler does not seem to handle the JSF 1.2 spec. It does not fulfil the requirements of wrapping and buffering the response. This has been introduced in the JSF 1.2 spec in order to solve the JSF / JSP content interweaving problems. My (rather inelegant) solution is to have copied the renderView method implementation (and all the subsequent methods it calls) from the ViewHandlerImpl class of the Sun RI of JSF 1.2. I have then made the necessary changes so that the executePageToBuildView method dispatches to the tile rather than the original viewId that was asked for. If I can come up with a more elegant solution I will attempt to contribute it to the project. Otherwise I hope this may be of some assistance. Steven
