I did a quick test on another one of my sites with the default vbseo rules.
Configuring things with the setup in post 1 of this thread returns a 404 error on every page. (L removed from last vbseo rule and included in last cache rule)
Removing the L in the last cache rule and replacing in the last vbseo rule as in post 9 does not result in errors, but it does not appear anything is cached. Total cache hits and cache hits/sec remain at 0 when viewing real-time statistics.