Oh yes, one more thing to check is that in the ad.ini file (in the parameters directory) you have replaced all references to yourservername to polv.
Change lines like this
[ns/server/yourservername/acs]
to
[ns/server/polv/acs]
I'm not sure what the difference between AOLserver 3.3+ad13 and 3.42 is. Maybe someone else could answer that?