The 88 SDK as listed in your SP1 build is the 6.x engine from Kaspersky, as was the .81 SDK build.
On the Vista computers with the BSOD and Incompatibility Errors, are you sure you are are at the 188.8.131.52 build?
You will probably want to open up a Support Case with LANDesk on this. If you are seeing Blue Screens on Vista due to AV, this is a serious issue.
One more thing. Are you on Vista 32-bit or x64, and are you on Vista SP1?
This is on Vista 32bit with SP1. And if you double-click on the LDAV system tray icon, the status window opens and says the scan engine is 184.108.40.206.
The issue isn't seen on all Vista systems, but as I said, a couple have had issues and the errors generated state that Kaspersky AV v 6.x (not sure of the x part), are not compatible with Vista.
I will be opening a case, but unfortunately, I don't have a machine to test on that exhibits the issue.