See, here's where I'm unsure what's wrong with my locks... if I use the 'locked for all" option, it works - no one can enter. But it seems "allow household only" won't even allow my own sims..? and what's stranger, is that it still seems to allow the other (NPC) guests??!
The only thing I can think of is Inge's door hack - the one that lets you hand out keys... interestingly, trying to use the keys on vacation only brings up one family, Birth(?)... haven't played with that much yet - I expect though it's the problem... hmmm... perhaps I'm wasting your time...
I'll look into this further....
..and indeed, I am. Sorry, folks, it was as simple as visiting Inge's site and seeing the
shiny new BV version available.. silly me
I'm gonna go be meek now, and cower in the shadows again. Thanks for your help anyways... you guys are great.