Migrate from VHCS2 on Server 1 to ispCP on Server 2

[DaSilva]

I want to migrate from my old server to a new one.
The old server is using VHCS2 2.4.8 RC1 and the new should run with ispCP RC4.
Server 1 uses Debian Etch i386 package and the new server should run with the Debian Etch AMD64 package.
What must I do to migrate all customers from server 1 to server 2 (incl. webs, mails, databases and passwords)?
Do I have to install VHCS2 2.4.8 RC1 on server 2 for the upgrade script or only some specific files?
I want to keep all passwords from server 1.
What must I do to migrate all the stuff mentioned above and all settings to the server 2?
Thanks for help!