I do not need a solution (just sharing information)
I was the one the logged this KB article-
Image deploy is retaining the name of the original computer the image was captured from.
http://www.symantec.com/docs/TECH174970
I know there was a workaround but it looks like this was solved in 6.9 SP5 MR2.
Couldn't see anywhere to mark this in the KB article, I assume I can't.
Hope that can help someone.