the s:link and s:button don't submit any value. Change to a h:button or its ajax-family member ant it will probably work.
P.S. Try to get rid of DTO's which is a pattern longer needed in a
normalPOJO - Seam application. Use dirctly the classes or make use of much simpler Home objects. If you're bridging to Spring, download the free Seam in Action chapter at Manning.com which explains very good how to do cooperate with Spring..
thank you, it did the trick (you probably meant h:commandButton). Regarding DTO's - i wish i could get rid of them but just can't because of legacy issues.