I don't expect this to help, but try dropping all the parts, and picking up only the armor and the heart. Then tell him you have them and tell him to merge them.
If you did need to have all the peices with you for him to do it, then try dropping everything then picking it all up again, thus refreshing the fact that you are carrying them. I might help. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
I'm sure someone els will come along with better solutions though. You could try these in the meantime. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
Killerzzz