if you have already uploaded the .vmx and .vmdk, then you are half way there. In ESX 3.0, you'll need to make sure that these files are on the vmfs file system. Simply register the VM using vmware-cmd -s register /path/to/.vmx and it should show up in your VI Client.
Network and Identity Configurator for Linux® (NICL) is a tool that enables easy changing of the system name and network address of Linux systems and IBM middleware. It employs a BASH script that can save multiple man-months in system configuration time. This tool was developed within IBM for administrating an internal block of Linux systems. For example, a typical system involves managing a multi-server VMware ESX environment, and that involves the creation of many possible different virtual servers and Linux configurations.