Available from http://shino.pos.to/party/bridge.cgi?puppy/opt/
If you have ever installed another or older virtualbox PET/SFS and trying new, remove old ones and delete '/lib/modules/*/misc/vbox*.ko', /opt/VirtualBox, if they are exists, before loading the new.
virtualbox-4.1.14.sfs has pre-build kernel modules for:
- 2.6.30.5
- 2.6.32.59
- 2.6.37.6
- 3.0.25
- 3.1.10-slacko_paeA
- 2.6.32.28
- 2.6.33.2
- 2.6.39.4
- 3.1.10-slacko_4gA
Load the kernel source SFS, devx SFS and this virtualbox SFS. Then type 'virtualbox' on a terminal.