I use sidux 32 bit and the non-ose edition of vbox but there are a fews ways to go as I see it
1) remove all binaries and download either the non-ose or ose editon
..install it..and run
this will create the module on your current booted kernel..and saves it for any reboot...but that command (or script) needs to be redone each kernel upgrade.
2) you have not specified what your cpu is...so I can offer no hint as to what crap to delete and what to keep and build from the correct cpu binary ...so (1) is still easier
3) the reason I use non-ose is it gives me USB support in the vbox