Hi, I've used the VMware VCenter Converter Standalone for many 2003 P2V conversions. Here are the OS's it supports
Powered-on machine
Converts a running machine to a VMware virtual machine. The machine can be your local machine or a remote machine on the network. When converting a remote machine, provide the IP address or name, administrator or root credentials, and operating system on which to create the machine.
Supported operating systems are:
Windows 2000, 2003, XP, Vista, 2008
Red Hat Enterprise Linux 2.1, 3.0, 4.0, 5.0
Red Hat Linux Advanced Server 2.1
SUSE Linux Enterprise Server 8, 9, 10
Ubuntu Linux 5.x, 6.x, 7.x, 8.x
Linux sources should allow root login through SSH.