UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support [6.3.0] Search shows private forum listings

I know this was fixed in 6.3.0.1, but given that my forums have some hacks we install when we upgrade, I'd really rather not do a full upgrade to UBB 6.3.0.1. Can Charles or someone else point me to a way to fix the private forum search bug in 6.3.0 without upgrading?

TIA.

- Neal