Yea, i tried the phone. If i describe my opinion of that experience here, i'm sure i will be banned

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Being a linux admin and open source purist, using forums, wikis, and google, as well as good old trial and error to solve any problems i come across is what i do but after paying for a product, i have a certain expectation level of support assistance. Isnt that what i am paying for?
I have searched and read, tried and failed, and searched and read some more but all to no avail.
What i am asking for in my support case is some help/guidance in migrating users and domains from foss zimbra on osx 10.4 to ne version of zimbra on rhel5 64-bit. These 2 boxes have different host names and ip's.
I would certainly be grateful for any help or insight someone here may be able to offer. Then i can close the open case and save it for something that isnt as time sensitive.