did you deploy the nukes.ear first? i'm thinking no b/c you are getting the ClassNotFoundException b/c jboss can't find the BlockSupport class (which is contained in the nukes.ear).
also, your module should be deployed in the "nukes" directory (ie: default/nukes). this is to help guarentee that the nukes.ear (which all other blocks/modules/etc) depend upon is deployed first.
It's ok !!
Thanks a lot!!