I had no problems getting this to run! I did the following when creating the VM:
create a new VM and select the Centos option
make sure that the Advanced view is selected (at top right)
set the BIOS to use SeaBios
Set the primary vdisk to use SATA, Manual mode and then set the path to point to the .vmdk file
set the network to a bridged connection (br0 in my case)
create the VM
it will now be running and you can connect to it via the built-in VNC Remote or via a VNC client running on another machine (using the port shown for the running VM). If you want to connect directly to the VM bypassing VNC then you will need to gets its IP address either from your router, or using a scanning application such as Fing, or by doing an ‘ifconfig’ command from a login via VNC.