Quick tip for anyone running Debian Lenny under VMware. As the tools were open sourced you can now find an implementation in your apt tree. Although personally i haven’t seen a quick and easy guide floating around.
Run the fowling as root
apt-get install open-vm-source
module-assistant prepare open-vm
module-assistant auto-install open-vm
Update!: If you are getting out of date tools in your vmware see this comment for an explination