Don't bump your posts, you have provided next to no information about the problem which is why you will get next to no help.
Who can not find the home interface?
Exceptions, Messages, Stack traces?
Where is the client?
A better description of the interactions going on?
Pretty simple question...doesn't require you to know my life history:
Are there any extra configuration requirements for deploying signed jars (within JBoss)?
I have a signed jar which I am able to deploy and access without difficulty. I would look elsewhere for your problem. Anything else different about the signed jar?