Can some one do a step-by-step install of zimbra 6xx on unbuntu 8.04/9.04/9.10/10.04 server, with samba integrated for ldap access?

VirualBox 3.1

a) 1 VM ubuntu 9.10 server, Zimbra 6.04 as Exchange
b) 1 VM ubuntu 9.10 server, samba3 as AD connected to 'a'(LDAP)
c) 1 VM ubuntu 9.10 Desktop connected to 'b'(docs) & 'a'(email,cal,etc|sync)
d) 1 VM winxp sp3 connected to 'b'(docs) & 'a'(email,cal,etc|sync)

Thank you.