First, huge kudos again to the SalixOS developers, both those who responded here and those who wrote to me privately. It is precisely this sort of attitude that got me so up on VectorLinux five years ago. Instead to circling the wagons and attacking me for daring to find flaw in the distro y'all are taking it as constructive criticism, rolling up your sleeves and discussing fixes. It's this oh so positive approach that sets SalixOS apart from many other distros. I can't thank you enough.
I think the wireless issue will sort itself out eventually. Support for more Broadcom chips is being added to the b43 driver.
It would be nice if there was a way to prevent the installer hang issue. It's easy to work around if you know about it in advance. If not, well... The big problem with Broadcom chips and cards (and not just wireless ones) is that they change specs and functionality, sometimes in major ways, without changing model numbers. Right now some Broadcom 4312 chipsets do work with the b43 driver in the latest kernel but not others.
To me the bigger issue is ALSA. Yes, I know it's an upstream issue, as in even upstream from Slackware, but a patched or newer version should be made available whenever that is possible.
On the printer issue the trick is to package the Zenographics Zjstream driver (foo2zfs, see:
http://foo2zjs.rkkda.com/ ) and include a routine to download the proprietary firmware. I haven't tried to dissect the Ubuntu package but I'd bet that is what they are doing.
Again, I'm really pleased with the response. A great community and developers who care about their users really can make all the difference in the world.