Setting the bios boot delay
In the new VMWare Server 2.0, you cannot set the bios boot delay through the web interface. You must do it manually.
Add the following line to your virtual machine's .vmx file to set a 20 second bios boot delay:
bios.bootDelay = "20000"
Copying thin vmdk files with vmkfstools
This process allows you to copy a thinly provisioned vmdk to another datastore without it automatically becoming a thick file.
Login to the unsupported console and use the following command to clone each vmdk from your virtual machine:
vmkfstools -i [existing vmdk file] -d thin [destination vmdk file]
After your vmdk files have been cloned/copied to the new datastore you will need to manually copy all the other files from the original directory to the new location.