ok i found the notes you changed in the article but the first step fails:
root@ubuntu:~# VBoxManage import IncrediblePBX-11-12.3-SL66.ova
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Interpreting /root/IncrediblePBX-11-12.3-SL66.ova...
OK.
Disks: vmdisk2 21793882112 -1
http://www.vmware.com/interfaces/specifications/vmdk.html#streamOptimized IncrediblePBX-11-12.3-SL66-disk1.vmdk -1 -1
Virtual system 0:
0: Suggested OS type: "RedHat_64"
(change with "--vsys 0 --ostype <type>"; use "list ostypes" to list all possible values)
1: Suggested VM name "IncrediblePBX-11-12.3-SL66"
(change with "--vsys 0 --vmname <name>")
2: Product (ignored): Incredible PBX + Incredible GUI
3: Vendor (ignored): Ward Mundy & Associates LLC
4: Version (ignored): 11-12.3
5: ProductUrl (ignored):
http://incrediblepbx.com
6: VendorUrl (ignored):
http://incrediblepbx.com
7: Description "see license conditions below"
(change with "--vsys 0 --description <desc>")
8: End-user license agreement
(display with "--vsys 0 --eula show";
accept with "--vsys 0 --eula accept")
9: Number of CPUs: 1
(change with "--vsys 0 --cpus <n>")
10: Guest memory: 1024 MB
(change with "--vsys 0 --memory <MB>")
11: USB controller
(disable with "--vsys 0 --unit 11 --ignore")
12: CD-ROM
(disable with "--vsys 0 --unit 12 --ignore")
13: IDE controller, type PIIX4
(disable with "--vsys 0 --unit 13 --ignore")
14: IDE controller, type PIIX4
(disable with "--vsys 0 --unit 14 --ignore")
15: SATA controller, type AHCI
(disable with "--vsys 0 --unit 15 --ignore")
16: Hard disk image: source image=IncrediblePBX-11-12.3-SL66-disk1.vmdk, target path=/root/VirtualBox VMs/IncrediblePBX-11-12.3-SL66/IncrediblePBX-11-12.3-SL66-disk1.vmdk, controller=15;channel=0
(change target path with "--vsys 0 --unit 16 --disk path";
disable with "--vsys 0 --unit 16 --ignore")
VBoxManage: error: Cannot import until the license agreement listed above is accepted.
root@ubuntu:~#
I think I'm almost ready to install a desktop :-(
Thanks leon